Mike, If you find anyone with info on this conversion, I'd appreciate it if you'd pass it along. I have a 2002A which I bought used many years ago that I'd like to convert to 222 MHz. The Henry and R
I have converted a few of their similar early tube amplifiers to nearby NMR applications. If you tell me what tube compliment is in the unit, I'll see if anything I have is close. - The amps I have w
I have had the pleasure of doing business with Ted Henry and Paul Johnson for 20 years or so. Although I am small potatoes to Henry, I have been treated like royalty. I have experienced their warran
re: Henry amps... Hi Mike, - My amps have the early drop in 3cx400, which I believe is the same socket and all. The thermal stability of the amplifier (tank values change) kept me from upgrading the
Hi Mike, - I have two of this style amplifier. Both have been moved around quite a bit. I've had these amplifiers up to NMR Frequencies at ~300Mhz. So the answer is yes and no. I've had these style a