I threw this together to power the transistor based projects I am doing.
Just an ol piece of Altec sheetmetal that my friend Andy threw me.
A Condor regulated +15/-15 supply and a DIY 48 volt phantom supply.
I like the big Pilot lamps! Four octal sockets on top for power distribution..
The Condor I bought at the surplus shop for about $12.95. It has short circuit protection, fine tune adjustments for the +-15, current limit adjustments and 2N3055 output transistors, so it can't be half bad!
I think they use them in Hospital equipment, so it should be prety clean.
Top of the Condor supply. They also sell them in the Allied catalog I believe. Or was it digi-key? 800 ma should be plenty of juice to power four rack projects.
The phantom supply is very simple, just on half of a 60 volt centertapped transformer, a rectifier bridge, a four section RC filter with lots of capaitance, and a bleeder resistor.
Power is supplied by way of some octal tube sockets and plugs.
I just bolted down that +- 15 on one side and added the +48 on the other side. Double fused pwr input. Why? Because all I had was a double fuse block! Whatever...
Just an ol piece of Altec sheetmetal that my friend Andy threw me.
A Condor regulated +15/-15 supply and a DIY 48 volt phantom supply.
I like the big Pilot lamps! Four octal sockets on top for power distribution..
The Condor I bought at the surplus shop for about $12.95. It has short circuit protection, fine tune adjustments for the +-15, current limit adjustments and 2N3055 output transistors, so it can't be half bad!
I think they use them in Hospital equipment, so it should be prety clean.
Top of the Condor supply. They also sell them in the Allied catalog I believe. Or was it digi-key? 800 ma should be plenty of juice to power four rack projects.
The phantom supply is very simple, just on half of a 60 volt centertapped transformer, a rectifier bridge, a four section RC filter with lots of capaitance, and a bleeder resistor.
Power is supplied by way of some octal tube sockets and plugs.
I just bolted down that +- 15 on one side and added the +48 on the other side. Double fused pwr input. Why? Because all I had was a double fuse block! Whatever...
