Still in business but its a telecommunications supplier mainly, I doubt if you will find a schematic it sells to the trade , nothing is impossible it could be converted but you will need to do some "reverse engineering " unless somebody here knows more about it.
My search also turned up with telecommunication, and my initial thought was it was diy, but the back plate looks factory made, the seller promised a inside picture, maybe it will tell more, looks like only two to3 pr channel, well have a nag for odd stuff, could be fun.
Take the covers off the power transistors, see the markings...some companies used to sand them off.
TO-3, so most likely 3055/2955, BDW series or MJ series. So mostly a fairly common circuit then, and still used for rugged amps.
Individual volume controls.
Such an industrial looking thing.
Check it out on power with a bulb in series, after a thorough inspection, if it passes that connect to speakers...
TO-3, so most likely 3055/2955, BDW series or MJ series. So mostly a fairly common circuit then, and still used for rugged amps.
Individual volume controls.
Such an industrial looking thing.
Check it out on power with a bulb in series, after a thorough inspection, if it passes that connect to speakers...
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A 3 pin DIN the UK usually has a first choice of being a microphone input --yes looking through my books on microphones many UK types used DIN others used jack -plugs/sockets .
I hope you are right and I am wrong as to its use .
I hope you are right and I am wrong as to its use .
As soon as I get a inside pic I will upload it, it's a little mystery. And I do like a good mystery.
The second pic (its a bit dim to see clearly) shows phone jacks plus standard 3 pin XLR panel sockets and plugs for balanced input and output connections respectively, as you'd expect with a stereo, utility PA amplifier. It won't be a Hifi amplifier but no doubt could be used in the home if the noise and distortion levels were going to be acceptable.
Since it's from Britain, could it be a maplin circuit? Must investigate a bit, let me know what you think
Semifinished? Good heatsinks for TO-3. Transformer. 🙂
Drivers TIP-41 / 32C. Output inductor.
Drivers TIP-41 / 32C. Output inductor.
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What about them? Pics show power supply and the two driver boards for the to3 which are unknown but probably 3055 , I'm not sure I understood your question
TIP 41 pairs are driving the TO-3 cased transistors?
I had the impression that TIP 41 are quite capable of being used as final output transistors.
45 US is cheap?
The transformer itself would be costly today...
I had the impression that TIP 41 are quite capable of being used as final output transistors.
45 US is cheap?
The transformer itself would be costly today...
