Hi diyAudio forum

[paul robertson]

I'm a new member located in Sydney Australia.

I was moved to join after browsing your forum for help on
a problem I have with my GK 700RB bass guitar head.

By plugging in what was a short circuited lead into the output
plug of the head, I have damaged it.

On examination, I have found an electrolytic cap has exploded
and there are a number of resistors burnt on the power stage.

I'm looking to acquire some advice on how to get the unit operational again.

I hope I can just acquire the caps and the resistors I need. I have contacted GK about getting some information (schematic, bill of materials, parts specification)

I have an electronics background so will have no problem doing the actual parts replacement.

 

[planet10]

Welcome to the forum...

Is the GK tube or SS? (an indication of where a post for help should go)

dave

 

[Richard Ellis]

Sad to say it is Solid State..............as an homage to tube amps it does have its G.I.V.E. system...or Gate Induced Valve Effect.
Do yourself a favor & find a true valve amp for your guitar. This is rated for 380 Watts and a "smaller" second 50 Watt amp. Why so much power I wonder?

Oh..By the way welcome Paul!
__________________________________________Rick...........

 

[paul robertson]

Thanks for the welcome Rick and Dave. Really an international forum. BTW - I have been in touch with Gallien and have acquired the schematic for the power stage so things are looking up.

 

[Cal Weldon]

Hello Paul and welcome to the forums.