Mystery find

[andresound]

Hi Guys, picked this up last week. It will arrive this week. Besides great donor PT and OT and loaded with a 12” alnico... anyone familiar with this amp from 1946?

[TUBEDUDE]

That looks like a great refurb project. What tubes does it use?

[andresound]

I will only know for sure of tube compliment when I receive the shipment. But it looks like a pair of RCA 6v6’s and maybe 6SN/L pre tubes. Will revert once I receive.

[Coyotesgator]

Looks like someone took a grinder to the trans corner.

[andresound]

Looks like someone took a grinder to the trans corner.

Now that you pointed that out.. it looks like both trannies have been subjected to a grinder!!! Might have something to dude with the cabinet.

[Davidg]

Well it is a Wizard so it should have a great AC/DC tone. I guess this must be the first one. Lol

[andresound]

Well.... I picked up the delivery today and had a quick peek at the wizard. The cabinet is made out of VERY thin ply !! The amp is from 1946. The power amp looks to have TWO mains transformers that look to be original. I would think that one was for powering the original field=coil speaker? (Seems too large). The transformer underneath, is the OT. Will revert with more details and pics over the weekend.
Have a great weekend!

[andresound]

8F1AC461-7E9E-4D1F-BF7C-FE3FB73E1C52.jpeg

Some pics of the bigger of the two PT’s. Looks to be 350-0-350 @ 120ma.

CF1B0146-8130-474A-8330-7E52038D1A89.jpeg

This PT was located next to the rectifier (5U4) and power switch and fuse.

[andresound]

The smaller of the two PT’s looked like this (325 0 325 @100ma), and was connected to a 0Z4 rectifier (cold cathode), and had this “VIBRATOR”, which I have never seen before (dont know what it does)!

[martin manning]

Looks like it has two high voltage supplies, so it can run from a 6V DC source. Vibrators were common in auto radios and home radios when no AC power was available. It's a low frequency electromechanical switch mode power supply.

[sluckey]

That electro-mechanical vibrator was commonly used in autos with a 6V battery system and a tube radio. The vibrator was part of the radio. It would take 6VDC and chop it up by vibrating a switch contact, which produced a rough square wave AC voltage that was fed into a transformer. The transformer would step up the voltage which would then be rectified to produce B+ voltages suitable to operate the tubes in the radio.

That vibrator kinda suggests that the wizard could also be operated from a battery.

[andresound]

Looks like it has two high voltage supplies, so it can run from a 6V DC source. Vibrators were common in auto radios and home radios when no AC power was available. It's a low frequency electromechanical switch mode power supply.

Thanks Martin and Slucky. Does that mean the second smaller but still beefy PT does not have a 240v primary?

[andresound]

BTW.. this smaller OT looks cool from WODEN

[sluckey]

Does that mean the second smaller but still beefy PT does not have a 240v primary?

That would be my guess.