I picked up this big old lab quality audio generator the other day for tubes and parts.
The tube run down is
-one 5U4
-three 6Y6GBs
-one 6L6GB
-four 6AU6s
-two 6AG7s
-one OB2
-one 6E5 eye tube
The Power transformer is a nice big one and is a Stancor 743 PZ, 306 105. I have been searching the net for exact specs on this PT with no luck so far. If anyone might have the specs or info on the PT I would greatly appreciate you posting it.
I did check voltages at got this.
PT unloaded 990 vac, 962 vac under load.
Also 535VDC at the 5U4 under load.
535VDC seems pretty darn high for any build I can think of.
Pictures of the beast....
Stancor 743 PZ, 306 105 Power Transformer
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bastardbus
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- Location: Toledo, Ohio
Stancor 743 PZ, 306 105 Power Transformer
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Last edited by bastardbus on Fri Sep 19, 2014 8:05 pm, edited 1 time in total.
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Stevem
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Re: Stancor 743 PZ, 306 105 Power Transformer
A single 5U4 will never handle the current needed to get 300b svt up and running!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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bastardbus
- Posts: 55
- Joined: Tue Mar 29, 2011 6:22 am
- Location: Toledo, Ohio
Re: Stancor 743 PZ, 306 105 Power Transformer
From the tube line up this unit has I would think it could handle 50 watt set up like a pair of 6L6s, 5881, KT66s, EL34s but I think 535 B+ is too high for those tubes.
Wish I could come up with solid specs on this PT though.
Wish I could come up with solid specs on this PT though.