I know several DXpeditioners who have used and own one of the SPE Expert models. When used within its limitations it is a good performer (my understanding) and they like their amp. I won a certificat
I finally got around to testing, albeit briefly, the new transformer I asked and Electronic Product Designs (EPD, Inc.) to prototype for me. At our contest station we have 2 Alpha 91b amps with the p
Has anyone experience using the N8XJK Super Booster < http://stores.tgelectronics.org/the-n8xjk-super-booster/> with an SG-500 linear amplifier? The battery booster is rated at 40 amps and 16 volts m
Jerry, Having two 87a's in the inventory and having had them repaired at Alpha and on-site by Brad, they did inform me that the 87a requires genuine Eimac 3CX800A7 tubes. This is my understanding. Th
I have two Commander HF2500 and one HF2500E HF amplifiers for sale, AS IS. These are from a SK amateur estate. They are in very good physical shape. The only problem I can detect is the common proble
I have one of each SK506 (4-1000A) and SK516 (3-1000Z) glass chimneys that want a new home. Here's your chance to add to your parts stock for that amplifier build, repair or spare. These are new old
Back in 2014, I asked EPD, Inc., in North Carolina to make me a transformer for my 91b. I contacted Hammond but they didnt seem ready to do it. Perhaps just my impression. Another 2 hams also wanted