Thanks to the many for your replies. I have looked at RF parts and the graphic on the substitute only shows only an 11 pin socket. In the Commander II I have, the 11 pin socket appears to be part of
Thanks Jerry, I think you nailed it. Looking at the socket and finger stock that makes sense and I get it now. Thanks again to all for the feedback. 73 Mike K9MK Mike, They are indeed separate parts.
Has anyone added one of these "triode boards" that are out there to a DTR-2000L? How did that work out and which Triode Board did you use?? I am also looking to buy a DTR-2000L front panel. If you ha
I was on the early list for one of these. Cindy could/would never take my order because of the pricing issue. But the street rumor was about 10 were delivered to select customers stateside. IMHO, the
Jim, Thanks for sharing the 160M toroid details and the pics. I have a PA-70V and I am about to add 160M to my amp. RF concepts was not able to provide any guideance here but I was able to find a cop
Find a computer surplus and grab a Blade power supply out of a surplus server. Around here they can be had for $25-$50 each. These usually have 50V @ 50Amps output, with 220-240VAC inputs. 73 Mike K9
Greetings All, I'm am going to ship a Commander-II VHF amp and was wondering how critical it is to remove the XFMR and ship it separately? It seems a schoesch more XFMR than a SB-200 and I shipped th
Ran across a Alpha 77SX today. Seller not sure what they want to ask, and I'm not sure that to offer. What is the range of street prices for what appears to be a clean working 2 holer? Thanks in adva
Does anyone have a spare front panel indicator used on a Henry 3002A (my guess it is the same indicators were used on many of the H-amps)? All I really need is the square "Red Operate Lens" but havin
I looked at that kit-assembly a week back I asked 4Z4RB the same question, about the apparent missing mounting holes, and if he would supply the heat spreader. His response was "I can supply a pre dr
A friend recently acquired a SB-1000 and wants it "updated" and if possible add QSK. The Harbach suite of updates list the SB-220 but not the SB-1000, but I assume the 3-500Z class mods apply just th
Hi Joe, My Henry 2002A used a Guardian 1365PC Antenna Relay, used in many Henry Amplifiers. Mine had solder conenctions made with wire stressed, and one lead pulled away from ground and another the j
I am installing a Harback SS-100 into a SB-1000 for a friend. The instructions suggest it be glued in place with some RTV or something similar. I was thinking contact cement or maybe double stic
I worked on a SB220 recently that had a wire along with copper pad lift off the original PCB (opening the circuit) and was floating a few mils behid the PCB. Of course it was hard to see as it was bo
Greetings all, I'm looking for this groups sage advice. A friend dropped off his Alpha-78 that was converted to a pair of 3CX800's along with adding the PWD transformer P/N "Alpha 76A-2. In CW mode t
Greetings I am trying to locate this SMD overdrive resistor that Charles mentions in #2 below. I looked through the schematics provided in the manual and I am not seeing it. Does anyone have more spe
I just restarted a TL-922A I received from an estate that was off since about 9/11. Bedroom kept, I tried the variac ramp first and the thing buzzed like crazy. I quickly realized it has a soft start
Greetings, Back in the day I had a MLA-2500 with a similar problem. I recall tracing it back to the filament on one of the tubes. What I don't recall was if it was a flakey solder joint on the socket
Greetings Thermionic Sages, I'm looking at an Alpha 8410 for a friend that is exhibiting what I consider a weird problem. This amp is 2 weeks old and worked fine until two days ago. On SSB, legal lim
Hi Cathy, NXP/Freescale, and several others have devices in the cellular bands. Yes, this includes high power devices but I never had the pleasure of using something in the 1.5KW class, mostly restri