Sugden A25B

[kris1342]

Can anyone help with a circuit diagram of the Sugden A25B. Bought it a while ago on Ebay and only just got round to using it.
Both channels are distorting. It is in a common section as all inputs are affected.
Could always trace it out, but that is rather lengthy.
Also, any suggestions as to the op-amps used - the code has been blacked out.
Thanks

 

[Zen Mod]

it's all I have

output is pretty much generic - from Hitachi app. notes

 

[kris1342]

Thanks - anything helps

 

[Michel]

Hello kris1342,

I wish I had seen your post earlier.
Do you still need the A25B schematic?

Regards,

 

[kris1342]

Michel
Yes please. The project is presently shelved until I find time, but proper schematics will help a lot

Thanks

 

[Michel]

kris1342,

Give me yor email address and I will send you the schematic.

 

[kris1342]

Michel
Thanks. Please send to kms@ndmeter.co.uk

 

[Dobs]

Salut Michel,

J'aimerai bien l'avoir aussi, svp. "dobermann A videotron.ca"

Merci.

 

[kris1342]

No luck so far

Dobs,
A ce moment, je n'avais pas recu rien.
J'attente Michel

Kris

 

[Cal Weldon]

This is an English speaking forum. If you wish to speak in another language, please also post the translation.

Thank you.

 

[kris1342]

Translation

Not a problem. However, since the last post was in French, out of politness I replied in the same language - and also probably Michel's language.
However, for the others:
" So far, I have received nothing. I am waiting for Michel"

PS I understanding that some company called Gaggle offers a web-based translation service. This may be of help in the future.

 

[Michael Orme]

kris1342,

Give me yor email address and I will send you the schematic.

Sugden A25B schematic. Could you send me a copy? I've 2 of these Amps, both need some work now. Mike UK.

 

[Michael Orme]

Can anyone help with a circuit diagram of the Sugden A25B. Bought it a while ago on Ebay and only just got round to using it.
Both channels are distorting. It is in a common section as all inputs are affected.
Could always trace it out, but that is rather lengthy.
Also, any suggestions as to the op-amps used - the code has been blacked out.
Thanks

Did you get this amp to work ok in the end?

 

[Michel]

Hello Michael Orme,

Do you still need the diagram?
If so give me your email address.

Regards,

 

[bt1100]

Hello Michel, I also got one of these Amplifers that needs some work. Can you please send me a schematik diagram too? May email ist speakermaker at t-online.de. Thanks a lot!

 

[SergeDufour]

The opamp is Ne5534AP everywhere.

 

[SergeDufour]

Better image

Better image

 

[Andreas AVM]

Forgive me for my English, what are the differences between the models A25 and a25b?