UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > General Vintage Technology > General Vintage Technology Discussions

Notices

General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc.

Closed Thread
 
Thread Tools
Old 23rd Nov 2017, 4:14 pm   #1
vampyretim
Hexode
 
Join Date: Aug 2011
Location: Bristol, UK.
Posts: 402
Default Vox guitar organ oscillator transistor replacement

Hi,

I'm repairing a Vox guitar organ and have an open circuit transistor which is a U15703. I can't find anything online about this transistor, can anyone recommend a suitable replacement?

Many thanks.
vampyretim is offline  
Old 23rd Nov 2017, 5:11 pm   #2
mole42uk
Octode
 
mole42uk's Avatar
 
Join Date: Aug 2010
Location: Bristol, UK
Posts: 1,562
Default Re: Vox guitar organ oscillator transistor replacement

The VOX Continental organ used 2N3708 transistors in the tone generator. The Guitorgan is similar.
__________________
Richard

Index:
recursive loop: see recursive loop
mole42uk is offline  
Old 23rd Nov 2017, 6:51 pm   #3
k_yller
Pentode
 
Join Date: Jan 2014
Location: Huddersfield, West Yorkshire, UK.
Posts: 109
Default Re: Vox guitar organ oscillator transistor replacement

its a germanium PNP transistor
try to replace with AC128
k_yller is offline  
Old 23rd Nov 2017, 10:06 pm   #4
Boater Sam
Dekatron
 
Boater Sam's Avatar
 
Join Date: Dec 2013
Location: Middlewich, Cheshire, UK. & Winter in the Philippines.
Posts: 3,601
Default Re: Vox guitar organ oscillator transistor replacement

See
http://www.logosfoundation.org/g_tex...itar-Organ.pdf

Been done before.
__________________
Boater Sam.
BVWS Member

Last edited by AC/HL; 24th Nov 2017 at 12:41 am. Reason: Link corrected
Boater Sam is offline  
Old 24th Nov 2017, 9:27 pm   #5
kevinaston1
Pentode
 
Join Date: Aug 2014
Location: Featherstone, West Yorkshire, UK.
Posts: 151
Default Re: Vox guitar organ oscillator transistor replacement

I have a service manual for the VOX V251 organ guitar. PM me if you need a copy.


Kevin
kevinaston1 is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 10:48 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright ©2002 - 2018, Paul Stenning.