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Old 23rd Nov 2017, 3:14 pm   #1
vampyretim
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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.
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Old 23rd Nov 2017, 4:11 pm   #2
mole42uk
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Default Re: Vox guitar organ oscillator transistor replacement

The VOX Continental organ used 2N3708 transistors in the tone generator. The Guitorgan is similar.
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Old 23rd Nov 2017, 5:51 pm   #3
k_yller
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Default Re: Vox guitar organ oscillator transistor replacement

its a germanium PNP transistor
try to replace with AC128
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Old 23rd Nov 2017, 9:06 pm   #4
Boater Sam
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Default Re: Vox guitar organ oscillator transistor replacement

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

Been done before.
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Old 24th Nov 2017, 8:27 pm   #5
kevinaston1
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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.


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