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AWA PA-100B

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2/11/1998 6:04 PM

AWA PA-100B

Hi Guys,
I recently aquired an old AWA Valve PA amp in working condition and have been thinking about modifying it for use as a guitar or bass guitar amp. Luckily it has the circuit printed on the lid so that should be of assistance, it is rated at 100W, but curiously only uses 2 KT88 tubes as outputs, anyway, what i was wondering is, has anyone else out there ever seen/used/ or modded one of these amps? If so, i would be very interested in your thoughts.....

Oh yeah, and by the way, it was made in Australia too, so i wont be surprised if it is unkown outside of here

2/11/1998 6:26 PM

> it is rated at 100W, but curiously
> only uses 2 KT88 tubes as
> outputs,

A pair of real MO Valve KT88s (not the current Chinese ones) are certainly good for 100W RMS at around 5% THD. If you need to replace the output tubes, make sure you used good quality KT88s or 6550s as the HT voltage will probably be quite high.

> thinking about modifying it for use
> as a guitar or bass guitar amp.

The output transformer is almost certainly a stock A&R or Ferguson type for "low-fi" PA use and wont be up to doing any justice to the low end in a bass application, but would probably be OK for guitar.

Cheers,

Bill (in Sydney)

2/12/1998 12:40 AM
RPD	You may find useful, a faq somewhere on this site covering Pa to guitar amp conversion. Well worth a read. Cheers Rob

2/15/1998 7:00 PM
Darren	Thanks guys, I shall have a bash at a conversion to a guitar amp ( as opposed to the bass configuration is was considering) using circuit ideas i have found on this site. I will let you know how it goes in case anyone else is interested....... Cheers Darren

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