Rasterlist Archives: Re: Help 'tuning' Trapshoot wallhanger rece

From: Mike Treu <mtreu_at_execpc.com>
Date: Wed Mar 21 2001 - 09:08:12 EST

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<DIV>Hello John,</DIV>
<DIV> </DIV>
<DIV>Got the receiver in the mail yesterday - thanks a
bunch.</DIV>
<DIV> </DIV>
<DIV>I apologize for the lack of timeliness
on actually buying the receiver.  I really wanted to avoid the $80
if I could have helped it.  I am looking forward to finishing this project
off!</DIV>
<DIV> </DIV>
<DIV>Thanks for your help,</DIV>
<DIV> </DIV>
<DIV>-Mike Treu</DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 solid 2px; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">
 <DIV>-----Original Message----- From:
 John Robertson <<A
 href="mailto:jrr@flippers.com">jrr@flippers.com</A>> To: Mike
 Treu <<A
 href="mailto:mtreu@execpc.com">mtreu@execpc.com</A>> Date:
 Tuesday, January 02, 2001 5:58 PM Subject: Re: Help 'tuning'
 Trapshoot wallhanger receiver board (1975) </DIV>Hmm, I recall
 that the receiver and transmitter crystals were different frequencies.
 Let me look it up... My notes indicate that the transmitter crystal is
 455khz higher than the receiver... John :-#)# At 10:21 AM
 03-01-01, Mike Treu wrote: >456K offset!?! > >I've been
 trying to use exact same valued crystals.  Is that not
 correct? > >-mt > >-----Original
 Message----- >From: John Robertson <<A
 href="mailto:jrr@flippers.com">jrr@flippers.com</A>> >To: Mike Treu
 <<A href="mailto:mtreu@execpc.com">mtreu@execpc.com</A>> >Date:
 Tuesday, January 02, 2001 12:16 PM >Subject: Re: Help 'tuning'
 Trapshoot wallhanger receiver board (1975) > > > >Hi
 Mike! > > > >You need an INTERNATIONAL money order. The
 Post Office has them, as well as > >banks. The rest of your info is
 correct. Do you have the receiver crystal, > >and if not what is
 the frequency of your transmitter crystal..they have to > >match
 (with a 456k offset as I recall. > > > >John :-#)# >
 > > >At 01:03 AM 03-01-01, Mike Treu wrote: > >>Will
 do! > >> > >>I see you are in Canada, so I will get
 a money order for the $80 (it may > >>take me a couple of days
 for the MO). > >> > >>I am sending it to John's
 Jukes Ltd. 2343 Main St., Vancouver, BC, Canada > >>V5T
 3C9. > >> > >>If that's not okay, please let me know
 ASAP. > >> > >>Thanks John! > >> >
 >>-mt > >> > >>-----Original
 Message----- > >>From: John Robertson <<A
 href="mailto:jrr@flippers.com">jrr@flippers.com</A>> > >>To:
 Mike Treu <<A
 href="mailto:mtreu@execpc.com">mtreu@execpc.com</A>> >
 >>Date: Saturday, December 30, 2000 10:39 AM > >>Subject:
 Re: Help 'tuning' Trapshoot wallhanger receiver board (1975) >
 >> > >> > >> >Hi! > >>
 > > >> >NOS $80US popped in the mail... > >>
 > > >> >John :-#)# > >> > > >>
 >At 12:21 AM 31-12-00, Mike Treu wrote: > >> >>Hi
 John, > >> >> > >> >>It's after the
 holidays, and I got a bit of spare cash. > >> >> >
 >> >>Thought I would check to see if you would still be
 interested in >selling > >>the > >>
 >>NOS Trapshoot receiver board. > >> >> >
 >> >>I'm tired of looking at the wire hanging out the back of
 the thing! > >> >> > >> >>If so, LMK the
 total with shipping to Appleton, WI. > >> >> >
 >> >>Thanks a bunch - hope your holidays were fun! >
 >> >> > >> >>-mt > >>
 >> > >> >>-----Original Message----- >
 >> >>From: John Robertson <<A
 href="mailto:jrr@flippers.com">jrr@flippers.com</A>> > >>
 >>To: Mike Treu <<A
 href="mailto:mtreu@execpc.com">mtreu@execpc.com</A>> > >>
 >>Date: Saturday, October 14, 2000 10:02 PM > >>
 >>Subject: Re: Help 'tuning' Trapshoot wallhanger receiver board
 (1975) > >> >> > >> >> > >>
 >> >Hi Mike! > >> >> > > >>
 >> >I'll have to see if I can find a used one, the one I thought
 was used > >> >> >turned out to be the NOS
 one... > >> >> > > >> >> >John
 :-#)# > >> >> > > >> >> >At 07:44
 PM 10/14/00, Mike Treu wrote: > >> >> >>I really
 don't need a NOS one. > >> >> >> > >>
 >> >>$50 is about as high as I can go. > >> >>
 >> > >> >> >>I'll do the original $50 for a
 used one if it includes the shipping >and > >>
 >>the > >> >> >>tuning notes. > >>
 >> >> > >> >> >>LMK and I can shoot out
 cash right away. > >> >> >> > >>
 >> >>Thanks John, > >> >> >> >
 >> >> >>-mt > >> >> >> >
 >> >> >>-----Original Message----- > >>
 >> >>From: John Robertson <<A
 href="mailto:jrr@flippers.com">jrr@flippers.com</A>> > >>
 >> >>To: Mike Treu <<A
 href="mailto:mtreu@execpc.com">mtreu@execpc.com</A>> > >>
 >> >>Date: Saturday, October 14, 2000 5:34 PM > >>
 >> >>Subject: Re: Help 'tuning' Trapshoot wallhanger receiver
 board >(1975) > >> >> >> > >>
 >> >> > >> >> >> >Actually there was
 not a crystal for the receiver, they run $10 > >>each... >
 >> >> >> >I found that I have a NOS receiver for the
 games with it's 26.540 >MHz > >> >> >>
 >crystal, $75US plus $10US postage-includes the alignment pages >
 >> >> >> >John :-#)# > >> >> >>
 > > >> >> >> >At 03:30 PM 10/14/00, Mike Treu
 wrote: > >> >> >> >>Oh, for the $50 - could I
 also get a matching crystal to pop into >my > >> >>
 >> >>transmitter?  That way I wouldn't have to doodle with
 the tuning > >> >>(although > >> >>
 >> >>the notes will still be helpful in the future just in
 case). > >> >> >> >> > >> >>
 >> >>-mt > >> >> >> >> >
 >> >> >> >>-----Original Message----- >
 >> >> >> >>From: John Robertson <<A
 href="mailto:jrr@flippers.com">jrr@flippers.com</A>> > >>
 >> >> >>To: Mike Treu <<A
 href="mailto:mtreu@execpc.com">mtreu@execpc.com</A>> > >>
 >> >> >>Date: Saturday, October 14, 2000 11:37 AM >
 >> >> >> >>Subject: Re: Help 'tuning' Trapshoot
 wallhanger receiver board > >>(1975) > >> >>
 >> >> > >> >> >> >> >
 >> >> >> >> >The problem is you need to tune the
 coils in sequence, and use >a > >> >>scope >
 >> >> >>to > >> >> >> >>
 >watch the results...I have spare receivers,
 but >untested...$50US. > >> >> >> >>
 > > >> >> >> >> >John :-#)# >
 >> >> >> >> > > >> >> >>
 >> >At 08:31 AM 10/14/00, Mike Treu wrote: > >>
 >> >> >> >>Thanks John.  I don't know if US
 checks are a pain to cash for > >>you. > >>
 >>I > >> >> >> >>will > >>
 >> >> >> >>throw $10 in an envelope to keep it
 simple for you.  I will >get > >>that >
 >> >> >>out > >> >> >>
 >>on > >> >> >> >>
 >>Monday. > >> >> >> >> >> >
 >> >> >> >> >>I will probably post for a
 receiver board at the same time. > >>Perhaps > >>
 >> >> >>someone > >> >> >>
 >> >>has one lying around from a game with a junk screen
 or >something. > >>I > >> >> >>
 >>really > >> >> >> >> >>think
 there is something wrong with one of the parts on the > >>board
 - > >> >>I > >> >> >>
 >>don't > >> >> >> >> >>think it
 should be as delicate to tune as this. > >> >> >>
 >> >> > >> >> >> >> >>Thanks
 a bunch, > >> >> >> >> >> >
 >> >> >> >> >>-mt > >> >>
 >> >> >> > >> >> >> >>
 >>-----Original Message----- > >> >> >>
 >> >>From: John Robertson <<A
 href="mailto:jrr@flippers.com">jrr@flippers.com</A>> > >>
 >> >> >> >>To: Mike Treu <<A
 href="mailto:mtreu@execpc.com">mtreu@execpc.com</A>> > >>
 >> >> >> >>Date: Wednesday, October 11, 2000 7:10
 PM > >> >> >> >> >>Subject: Re: Help
 'tuning' Trapshoot wallhanger receiver board > >>
 >>(1975) > >> >> >> >> >> >
 >> >> >> >> >> > >> >>
 >> >> >> >Hi Mike! > >> >> >>
 >> >> > > >> >> >> >> >>
 >Postage to USA is included. It's only four pages, but
 is >fairly > >> >> >> >> >>
 >comprehensive. It is for a different manufacturer, but
 as >far > >>as > >> >>
 >>Iknow > >> >> >> >>they >
 >> >> >> >> >> >used the same receiver.
 Certainly the theory is the same. > >> >> >>
 >> >> >You can phone us and give your credit card
 number. > >>(604)872-5757, > >> >>we >
 >> >> >>are > >> >> >> >>
 >> >here until 5:30 PCT, about 7:30 your time > >>
 >> >> >> >> > > >> >> >>
 >> >> >John :-#)# > >> >> >> >>
 >> > > >> >> >> >> >> >At
 04:58 PM 10/11/00, Mike Treu wrote: > >> >> >>
 >> >> >>I do have the original manual. > >>
 >> >> >> >> >> > >> >>
 >> >> >> >>But I am definitely interested in a copy
 of the alignment > >> >> >>information. >
 >> >> >> >> >> >> > >>
 >> >> >> >> >>Let me know how much plus
 postage and where to mail it to. > >> >> >> >>
 >> >> > >> >> >> >> >>
 >>My address is: > >> >> >> >> >>
 >> > >> >> >> >> >> >>MIKE
 TREU > >> >> >> >> >> >>W3062
 SPRINGFIELD DR. > >> >> >> >> >>
 >>APPLETON, WI 54915 > >> >> >> >>
 >> >> > >> >> >> >> >>
 >>Thanks John! > >> >> >> >> >>
 >> > >> >> >> >> >>
 >>-mt > >> >> >> >> >>
 >> > >> >> >> >> >>
 >>-----Original Message----- > >> >> >>
 >> >> >>From: John Robertson <<A
 href="mailto:jrr@flippers.com">jrr@flippers.com</A>> > >>
 >> >> >> >> >>To: Mike Treu <<A
 href="mailto:mtreu@execpc.com">mtreu@execpc.com</A>> > >>
 >> >> >> >> >>Date: Wednesday, October 11,
 2000 6:20 PM > >> >> >> >> >>
 >>Subject: Re: Help 'tuning' Trapshoot wallhanger
 receiver >board > >> >> >>(1975) >
 >> >> >> >> >> >> > >>
 >> >> >> >> >> > >> >>
 >> >> >> >> >Do you have the original Trapshoot
 manual ($20US)? I did > >>find > >>
 >>my > >> >> >> >>
 >>alignment > >> >> >> >> >>
 >> >information for game receivers. $10US plus postage
 to >USA. > >>No > >> >>
 >>charge > >> >> >> >>for >
 >> >> >> >> >> >> >this if you buy
 the Trapshoot manual. > >> >> >> >> >>
 >> > > >> >> >> >> >> >>
 >John :-#)# > >> >> >> >> >> >>
 > > >> >> >> >> >> >> >At
 05:00 AM 10/9/00, Mike Treu wrote: > >> >> >>
 >> >> >> >>Thanks a bunch for the response! >
 >> >> >> >> >> >> >> >
 >> >> >> >> >> >> >>I have a
 manual which allowed me to find out the zener >was >
 >>bad > >> >>on > >> >> >>
 >>the > >> >> >> >> >> >>
 >>receiver board. > >> >> >> >> >>
 >> >> > >> >> >> >> >>
 >> >>I also have two transmitters, which are outputting
 the >same > >> >> >>strength > >>
 >> >> >>of > >> >> >> >>
 >> >> >>signal, so I am sure they are both good. >
 >> >> >> >> >> >> >> >
 >> >> >> >> >> >> >>I have found
 the receiver to be extremely touchy, and > >>probably >
 >> >> >>made > >> >> >>
 >>a > >> >> >> >> >> >>
 >>mistake by trying to 'tune' it myself.  What I did
 was >take > >>a > >> >>5K >
 >> >> >>pot > >> >> >> >>
 >>and > >> >> >> >> >>
 >>put > >> >> >> >> >> >>
 >>it in series with a hardwire right to the antennae
 on >the > >> >> >> >>transmitter >
 >> >> >> >> >> >> >>(starting with
 it shorted).  I tuned it to trip the >output, > >>
 >>then > >> >> >> >>slowly >
 >> >> >> >> >> >> >>turned the pot
 to add more and more resistance, while > >>tuning >
 >> >>it > >> >> >>in > >>
 >> >> >>each > >> >> >> >>
 >> >> >>time.  This works fairly well until I advance
 to >removing > >>the > >> >>
 >>wire > >> >> >> >> >> >>
 >>completely.  I can get the thing working and
 start >moving > >>the > >> >>box >
 >> >> >> >>away > >> >> >>
 >> >> >>from > >> >> >> >>
 >> >> >>the main unit using the same method.  This
 works until I > >>get > >> >> >>about
 5 > >> >> >> >> >>feet > >>
 >> >> >> >> >> >>away - then it stops
 working (and my batteries are >good). > >>
 >>It's > >> >> >>also > >>
 >> >> >> >>fussy > >> >> >>
 >> >> >> >>as to where I place the transmitter
 (level with the >bottom > >>of > >>
 >>the > >> >> >> >>game > >>
 >> >> >> >> >>works > >> >>
 >> >> >> >> >>great, not much else). >
 >> >> >> >> >> >> >> >
 >> >> >> >> >> >> >>Are these
 things supposed to be thaaaaat touchy? > >> >> >>
 >> >> >> >> > >> >> >>
 >> >> >> >>Gremlin had to put out some kind of
 troubleshooting >thing > >>on > >> >>
 >> >>waveforms > >> >> >> >>
 >> >> >>through various stages of the receiver - that was
 really > >>what > >> >>I > >>
 >> >>was > >> >> >> >>
 >>hoping > >> >> >> >> >> >>
 >>to get. > >> >> >> >> >>
 >> >> > >> >> >> >> >>
 >> >>If you can help me, I will definitely pay you.  I
 know >how > >> >> >>valuable > >>
 >> >> >> >> >> >>troubleshooting tips
 are from experienced people - I do >it > >> >>
 >>myself! > >> >> >> >> >>
 >> >> > >> >> >> >> >>
 >> >>If the notes are good, I'll give you $25 for them
 alone! > >>I've > >> >> >>
 >>logged a > >> >> >> >> >>
 >>lot > >> >> >> >> >> >>
 >>of time on this puppy. > >> >> >> >>
 >> >> >> > >> >> >> >>
 >> >> >>Thanks, > >> >> >>
 >> >> >> >> > >> >> >>
 >> >> >> >>-mt > >> >> >>
 >> >> >> >> > >> >> >>
 >> >> >> >>-----Original Message----- >
 >> >> >> >> >> >> >>From: John
 Robertson <<A
 href="mailto:jrr@flippers.com">jrr@flippers.com</A>> > >>
 >> >> >> >> >> >>Newsgroups:
 rec.games.video.arcade.collecting > >> >> >>
 >> >> >> >>To: Mike Treu <<A
 href="mailto:mtreu@execpc.com">mtreu@execpc.com</A>> > >>
 >> >> >> >> >> >>Date: Sunday, October
 08, 2000 11:48 PM > >> >> >> >> >>
 >> >>Subject: Re: Help 'tuning' Trapshoot wallhanger
 receiver > >>board > >> >> >>
 >>(1975) > >> >> >> >> >> >>
 >> > >> >> >> >> >> >>
 >> > >> >> >> >> >> >>
 >> >I have worked on those units in the past and I
 believe >I > >> >>still > >> >>
 >> >>have > >> >> >> >>
 >>my > >> >> >> >> >> >>
 >> >notes on servicing those units. I have spare original >
 >> >>manuals > >> >> >>for >
 >> >> >> >> >> >> >> >those
 games, $25US manual and notes plus $3US (for > >>
 >>USA/Canada) > >> >> >> >> >>
 >> >> >postage. You will need  'scope to adjust
 these >correctly. > >>I > >>
 >>can > >> >> >> >>
 >>advise > >> >> >> >> >> >>
 >> >you a bit as well...I did find the easiest way
 to >adjust > >>the > >> >> >>
 >> >> >> >> >transmitter was a single loop of
 wire twice around the > >> >> >>transmitter >
 >> >> >> >> >> >> >> >connected
 to ground and the probe of the scope. This > >>gives a >
 >> >> >>nice > >> >> >> >>
 >> >> >> >no-load method of making sure the transmitter
 is >putting > >>out > >> >>a >
 >> >> >> >>good > >> >> >>
 >> >> >> >> >signal, once that is valid, then you
 set the receiver. > >> >> >> >> >>
 >> >> > > >> >> >> >> >>
 >> >> >John :-#)# > >> >> >> >>
 >> >> >> > > >> >> >> >>
 >> >> >> >On Sun, 8 Oct 2000 13:03:48 -0500, "Mike
 Treu" > >> >> >><<A
 href="mailto:mtreu@execpc.com">mtreu@execpc.com</A>> > >>
 >> >> >> >> >> >> >wrote: >
 >> >> >> >> >> >> >> > >
 >> >> >> >> >> >> >> >>My RF
 receiver board is waaaaay out of whack. > >> >> >>
 >> >> >> >> >> > >> >>
 >> >> >> >> >> >>Does anybody have any
 experience and/or literature on > >>how > >>
 >>to > >> >> >> >>tunes > >>
 >> >> >> >> >>these > >> >>
 >> >> >> >> >> >>guys in? >
 >> >> >> >> >> >> >>
 >> > >> >> >> >> >> >>
 >> >>ANY help is greatly appreciated! > >> >>
 >> >> >> >> >> >> > >>
 >> >> >> >> >> >> >>-mt >
 >> >> >> >> >> >> >>
 >> > >> >> >> >> >> >>
 >> > > >> >> >> >> >> >>
 >> >    (Please post followups or tech enquires to
 the > >> >>newsgroup) > >> >> >>
 >> >> >> >> > John's Jukes Ltd. 2343 Main St.,
 Vancouver, BC, >Canada > >>V5T > >>
 >>3C9 > >> >> >> >> >> >>
 >> > Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, >
 >>Video > >> >> >>Games) > >>
 >> >> >> >> >> >> > <A
 href="mailto:jrr@flippers.com">mailto:jrr@flippers.com</A>, web page >
 >><A
 href="http://www.flippers.com">http://www.flippers.com</A> > >>
 >> >> >> >> >> >>
 >        "Old pinballers never
 die, they just flip >out." > >> >> >>
 >> >> >> >> > > >> >> >>
 >> >> >> > > >> >> >> >>
 >> >> > > >> >> >> >> >>
 >> >  John's Jukes Ltd. 2343 Main St., Vancouver, BC,
 Canada >V5T > >> >>3C9 > >> >>
 >> >> >> >> >  Call (604)872-5757 or Fax
 872-2010 (Pinballs, Jukes, >Video > >> >>
 >>Games) > >> >> >> >> >> >>
 >  <A
 href="http://www.flippers.com">http://www.flippers.com</A> > >>
 >> >> >> >> >>
 >         "Old pinballers
 never die, they just flip out." > >> >> >>
 >> >> >> > > >> >> >> >>
 >> > > >> >> >> >> >>
 > > >> >> >> >> >> >  John's
 Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T >
 >>3C9 > >> >> >> >> >> > 
 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video > >>
 >>Games) > >> >> >> >> >>
 >  <A
 href="http://www.flippers.com">http://www.flippers.com</A> > >>
 >> >> >> >>
 >         "Old pinballers
 never die, they just flip out." > >> >> >>
 >> >> > > >> >> >> >>
 > > >> >> >> >> > > >>
 >> >> >> >  John's Jukes Ltd. 2343 Main St.,
 Vancouver, BC, Canada V5T >3C9 > >> >> >>
 >> >  Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes,
 Video > >>Games) > >> >> >> >>
 >  <A
 href="http://www.flippers.com">http://www.flippers.com</A> > >>
 >> >> >>
 >         "Old pinballers
 never die, they just flip out." > >> >> >>
 >> > > >> >> >> > > >>
 >> >> > > >> >> >> >  John's
 Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 > >>
 >> >> >  Call (604)872-5757 or Fax 872-2010 (Pinballs,
 Jukes, Video >Games) > >> >> >> >  <A
 href="http://www.flippers.com">http://www.flippers.com</A> > >>
 >> >> >        
 "Old pinballers never die, they just flip out." > >>
 >> >> > > >> >> > > >>
 >> > > >> >> >  John's Jukes Ltd. 2343
 Main St., Vancouver, BC, Canada V5T 3C9 > >> >> > 
 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) >
 >> >> >  <A
 href="http://www.flippers.com">http://www.flippers.com</A> > >>
 >> >         "Old
 pinballers never die, they just flip out." > >> >>
 > > >> > > >> > > >> > 
 John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 >
 >> >  Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes,
 Video Games) > >> >  <A
 href="http://www.flippers.com">http://www.flippers.com</A> > >>
 >         "Old pinballers
 never die, they just flip out." > >> > >
 > > > > >  John's Jukes Ltd. 2343 Main St.,
 Vancouver, BC, Canada V5T 3C9 > >  Call (604)872-5757 or Fax
 872-2010 (Pinballs, Jukes, Video Games) > >  <A
 href="http://www.flippers.com">http://www.flippers.com</A> >
 >         "Old pinballers
 never die, they just flip out." > >   John's
 Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9   Call
 (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)   <A
 href="http://www.flippers.com">http://www.flippers.com</A>         
 "Old pinballers never die, they just flip
out." </BLOCKQUOTE></BODY></HTML>

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Received on Wed Mar 21 07:51:40 2001

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