Post war 120volts to 12/24 power supply.

[Bob Carriere]

The design is very basics and massive ....... also very heavy...those side cut outs for handles do not provide a proper grip for lifting...... I am thinking of mounting one on a scaled down furniture dolly so I can wheel it under the work bench without scratching the hard wood floor. The second one will fit nicely on a shelf off the floor underneath the work station.

I got surplus static free electronic work bench some years ago when they shutdown a plant in Kanata....very heavy 1 inch plywood top covered with a 5/16 scuff proof plastic overlay which is grounded to the steel legs......steel panel legs and store shelf underneath. On top of the work bench is a secondary 16 inches high 12 inch back shelf with a full lenght power bar.

Nice tool to play with.

Bob C

[BCA]

My July 1953 Operator's Handbook says the CPP-2 (95 pounds) uses a power transformer followed by 2 metallic rectifiers and smoothing circuits (capacitor choke filter). This produces 2 separate 12 volt, 11 amp power supplies that may be connected by a switch in parallel to give 22 amps @ 12 volts or in series to give 11 amps @ 24 volts. The CCP-5 (129 pounds!) is similar in output but requires a 25 cycle input instead of 60 cycle input. 25 cycle was in common use before the introduction of 60 cycle (Mhtz) power in Canada. (? Late 1940's?).
They are a very useful bench power supply for 12 or 24 volts, although heavy to move around. ... Brian

[Bob Carriere]

...... I will stick to my CPP 2..... which I just carried down the basement to my workshop...... did not realize I was lugging 95 pounds.

Being lazy I have now one CPP 2 set up in the basement workshop and one set up in the sunroom were I do more clean work.....

I still have to set up a variac to slowly power up the 110 volt power supply for the 19 sets.....that I will do in the basement in case I blow up something.

On the Pawnshop TV show today they were powering up a WW II beach head amplifier/speaker set up..... the expert they had brought in had a canister type variac on the floor and was slowly dialing/powering up the old amplifier.... which ran well but had a loud 60 cycle hummmmm .....which he explained was caused by faulty condenser/filters which would need replacing.... and would be costly..... they estimated that the total value of individual parts...tubes.... transformers etc. were worht more than as a total amplifier unit.....

Strange were you can learn new information....

Brian are there any wiring diagrams in your operators manual???

Bob C



.......

[Doug Lavoie]

Bob,
Just saw a CPP-2 power supply on e bay for $249.00 or best offer.Thought that I would not see one like you have been talking about. To bad it is so far south east. The ebay # is: 141123542691.
Doug

[Bob Carriere]

Glad I got mine from MLU members..... at a better price and no shipping,

Bob C

[BCA]

Reasonably priced CPP-2 available for local pickup only: Milton, Ontario. PM me for details. ... Brian