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Hoffman Amps Forum image Author Topic: Reverb transformer for Gibson GA19-RVT Falcon  (Read 5447 times)

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Offline chocopower

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Reverb transformer for Gibson GA19-RVT Falcon
« on: October 30, 2009, 06:36:03 am »
Hello from Spain!

Could i use an standard Fender reverb transformer in a Gibson Falcon like this:

http://www.schematicheaven.com/gibsonamps/ga19rvt.pdf

The original trafo is marked in another schematic as "TF-E-6400"
Regards from Spain!

David

Offline sluckey

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Re: Reverb transformer for Gibson GA19-RVT Falcon
« Reply #1 on: October 30, 2009, 06:44:56 am »
I think so.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline chocopower

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Re: Reverb transformer for Gibson GA19-RVT Falcon
« Reply #2 on: October 30, 2009, 06:59:44 am »


Mercury Magnetics have an original replacement, but i think 40$ is pay too much for a reverb driver....
David

Offline HotBluePlates

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Re: Reverb transformer for Gibson GA19-RVT Falcon
« Reply #3 on: October 31, 2009, 06:22:41 am »
Could i use an standard Fender reverb transformer in a Gibson Falcon like this

Sure you can.

Offline LooseChange

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Re: Reverb transformer for Gibson GA19-RVT Falcon
« Reply #4 on: October 31, 2009, 06:37:48 am »
Yes, you can use the Fender type.

I've got the same amp. It was a mess and I completely refinished it.
Can you post a picture?

Call me Dan
www.fydamps.com

Offline chocopower

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Re: Reverb transformer for Gibson GA19-RVT Falcon
« Reply #5 on: April 13, 2010, 10:41:03 am »
Sorry.. i just have seen you reply right now..... :embarrassed:

here are the pics:












The only mod i have done to this baby are the usual safety ones and rise the P.I. coupling cap from 500pf to 1000pf. The original one is perfect for humbuckers, but  i use it with a Jazzmaster and need the extra punch.
Next time i opened it (what a nightmare!!) i have the idea to install a "fat" swicht to change betwen the two values (two 1000pf caps in series, shorting one of them with a swicht).
Amp was found in rubish for a friend of mine. No speaker. RCA 6V6 inside. After the cap job and others minor works is working like a charm with a Weber 12F150. Original 6V6 are ok too. 270 ohm bias resistor rise his value to 800 ohm, so bias was so cold that keep the tubes in a good condition.
« Last Edit: April 13, 2010, 10:46:45 am by chocopower »
David

Offline duke of earl

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Re: Reverb transformer for Gibson GA19-RVT Falcon
« Reply #6 on: April 19, 2010, 10:29:41 pm »
I have one of these in great condition with the original speaker. It sounds beautiful!

 


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