Blcakcat JB-2000+ Linear Amplifier unpowered Walkthru Talkthru

Описание: Just an unpowered go thru, talkthru, on the redone and modded Blackcat 2 piece JB-2000+
This uses an Antek 1500va, aka watt, Toroid transformer. What got the ball rolling on this was there was a guy on Facebook looking for a transformer for his JB-2000. Trannies in all Blackcats are somewhat underpowered and won't take any abuse, so blown trannies are a very common problem with Blackcats, especially with people who abuse and/or run them too hard. Anyway, since no one else answered the Facebooker, I replied that this Antek Tranny should work very well. I think the stock JB-2000 was a 1000 watt tranny and also used a weak voltage doubler circuit. Hence this 1500 watt tranny is 1/3rd bigger and can be configured as either a doubler or a full wave output. Both the original Blackcat tranny and the Antek can run on either 110 or 220 VAC input though I got mine setup for 110.
The Toroid has 2 950v output windings and I decided to put them in series and go full wave instead of the weak doubler circuit. Hence, the PS runs 1900ac out and hence just under 2700VDC after the cap bank. Looks like the JB-2000's with the driver tube ran off 2200 plate and the driver tube ran at half plate, so 1100v's. IMHO this was a compromise voltage that was very low for the 3-500z's and was very high for the 6ca7 driver tube. The version's without the driver tube ran 2700 on the plate.
The caps are 6 500v 220uf caps in series, so 3kv at 36uf total. The original used 6 475v caps at 160uf for the 2700v units and 6 450v caps for the 2200v versions. The 500v 220uf's are an upgrade in volts and UF's.
This is monobanded and has an upgraded Tune cap too. Wiring is short and tight and as can be seen in the video, the amp works very well.
In conclusion, the expert who told me that a Toroid won't work can go kick rocks.