Carlsbro GLX 100 Mains transformer

[Paul Hooson]

Hi.
Does anyone know the voltage and rating for the secondary windings on this Amp. I have just bouht one second hand and I suspect someone has put a smaller mains transformer to replace the original.

[J M Fahey]

Why do you think so?
What is the rail and transformer voltage?
Any transformer pictures?

[Paul Hooson]

The transformer that is fitted is 23v 0 23v and rated at 30VA. It just doesn't look up to the job to me. Sorry but I have no pictures.
It is not the original as it does not use the original fixings.

[J M Fahey]

User manual claims 100W RMS into 4 ohms.

Such an SS amp requires 30+30VAC , 120 to 150VA .

[Paul Hooson]

Thanks Juan.
That is more like the rating I would have expected to see. There is a lot of clipping on the clean channel when played and I suspect this is because the supply voltage is too low.

[Jazz P Bass]

It may help to monitor (and possibly rule out) the input signal to the power amp.

If that is clipping, well.........

[52 Bill]

If the main filter caps are original to the amp, check the dc voltage rating. That will give you a clue as to what the main power supply voltages could have been.

[Paul Hooson]

Pre amp checked ok

It may help to monitor (and possibly rule out) the input signal to the power amp.

If that is clipping, well.........

Hi.
As you suggested I tried the signal from the pre amp and this is clean so the problem definately lies with the power amp. I feel sure it is the transformer output to low.

Thanks