开云体育

That's right in the "zone"

I measured mine with a Bird 43 at the input (250W slug )? and one on the output (1000W slug) into a Bird 500W load.

With the power supply wired for 120, it did about 500W and wired for 240, it did around 600W



Now onto the HT33 (Mark-I)? power supply!?

I have another Drake L-4PS transformer + Harbach L-4B board that I will install in it removing the old (110 only) transformer, swinging choke and oil cap.


There's nothing wrong with the old PS except that I cannot pick up the amp @ 125lbs! ?(I'll save all the old parts and I will not drill any new holes!)?

I expect about a 50lb reduction in weight!! (and an increase in plate voltage from 2100V-2600V)

Cheers,?? Rick