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Posted: Sun May 08, 2005 10:03 pm
by jingle_jangle
Archer is an RS brand. The mounting screws look too long, too. Should be an easy replacement, but don't count on a genuine Rick transformer! You don't want to fry the circuit boards, so go carefully here.
Posted: Sun May 08, 2005 11:21 pm
by ozover50
Hopefully a member with one of these will chime in and offer some advice. I agree with Paul - IMO this is very thin ice here!
Posted: Mon May 09, 2005 1:56 am
by scoobster28
Oh no. We gotta get that Lightshow working. Best of luck to you John. And if you cannot get it to work and just want to "unload" it, I got a nice crisp $100 bill here!

Posted: Mon May 09, 2005 10:58 am
by ozover50
Vulture!!

Posted: Mon May 09, 2005 2:28 pm
by leftybass
John, can you post a pic of a bulb and it's base?
The bulbs look like the size of a auto bulb, industry number 1816. If I can see the whole bulb, I might be able to verify this..
Posted: Mon May 09, 2005 6:39 pm
by jsm610
Posted: Mon May 09, 2005 6:48 pm
by jsm610
Some more questions/requests:
- Does anyone have a schematic for the guitar or the transformer? How do the pin-outs map to power?
- Is the power-cable a 'standard' MIDI plug?
- Would someone take a picture of their transformer and post it here?
- Now I get 'bright' lights for about 5 minutes, then 'dim' lights and the transformer box hums. The hum only sounds when the lights should be on (in sync with your playing). Does anyone know if this is a sign of a transformer issue? It seems like if I cut power to the transformer for a couple of minutes and then turn it on again I get bright lights again...
- I seem to no longer get the blue lights to illuminate at all, but they worked yesterday...
- I looked at Radio Shack for a surface mount transformer, but they didn't have the right specs - anyone know a good place with a good selection of transformers?
Where's the 331-doctor when you need him most...
Posted: Mon May 09, 2005 7:05 pm
by ozover50
On the golf course, of course!!
Posted: Tue May 10, 2005 2:39 am
by jingle_jangle
Those are car bulbs.
There are a number of online sources for transformers. Let your fingers do the googling.
Posted: Tue May 10, 2005 3:01 am
by 8mileshigh
Craig Brody has transformers.............Reproductions of transformer boxes for Rickenbacker 331 "Lightshow" guitars are available by special order. Please e-mail or call for more details...$650. I think JH mentioned in the past, that these were a bit expensive for what they are?
Posted: Tue May 10, 2005 3:39 am
by jsm610
I saw that Craig sells them. I'm thinking a new transformer is around $30... So $650 sounds steep. Plus I'm not even sure that the transformer is the problem.
The guitar worked fine last nite for about 40 minutes... It was getting hot so I stopped playing... More troubleshooting to come.
There must be someone who has worked on these or has had someone work on one?
Posted: Tue May 10, 2005 3:47 am
by admin
John: Are the lights always on while playing? As you are making a bit of a modification to the electrics of this guitar, why not put in a switch (push/pull) that will turn the light circuit on or off. This guitar is cool looking, lights or not.
Posted: Tue May 10, 2005 3:58 am
by jsm610
Peter: The lights can be on or off. The 'extra knob', when turned all the way 'off' cuts the lights. I haven't figured out if it also cuts the heat... More playing needed! I had thought the heat was from the bulbs, but it comes from a metal 'thing' that is under the pickups, you can feel it through the back... This would be a good guitar for a winter show.
My new theory is that the guitar works fine if the transformer 'warms up' for say 10-15 minutes. Does this make any sense? Do transformers 'warm up'?
Posted: Tue May 10, 2005 6:57 am
by jingle_jangle
Transformers do indeed warm up, but this should not affect performance in any noticeable way, either positively or negatively. There is not a lot to go wrong with a transformer unless it is subjected to overloads. Overheating will destroy the lacquer or epoxy coating on the winding wire and cause a short, which can be intermittent but not too often is.
We don't know if this Archer transformer is even the correct replacement. I'd start there.
BTW, I heated up pretty well when I saw that $650.00 price tag. This is not rocket science. Seems to be a case of "what the traffic will bear". Perhaps Craig can comment on this if he reads this.
Posted: Tue May 10, 2005 7:00 am
by admin
Well you know what they say Paul, "Transformers, more than meets the eye."