The z presented to the rig's input by the amp in the GG varies with tuning. So if you are tuning up the amp's tank, how does that also not show up as an unmatched condition triggering the LDG to auto
Rob, I was thinking the same thing as you. A guy can spend a mountain of cash on interconnects for hv and still get fried. A stand alone supply by definition means kicking the danger awareness up a n
I picked up an old 76pa which seems to be in otherwise FB condition. 2400v idle on the plate cooking away those pipes who have not been used in a couple of years prior to some initial power testing t
Hi Roger, Fan is good. I can beleive the overtemp case because the amp spent a bit of time in the shack of a guy who is known for testing amps to destruction in contest and then a short stint at a gu
Steve, I was thinking that one of the guys here on the board had done some actual testing on this and found no significant difference at least in the power levels most run. Guys in the NZ 400w class
Wondered if anyone would recognize the markings on these 3 mystery transformers? 1) H477-00 2) BP 8632M118 W1786BP 3) Pacific Transformer T4504 73, Jeff ACØC www.ac0c.com ____________________________
Check out K9YC Jim Brown's page here. He's done a lot of work on this subject. http://www.audiosystemsgroup.com/K9YC/K9YC.htm The specific type of ferrite is critical. The front runner for low HF (wh
Read this. http://www.audiosystemsgroup.com/CoaxChokesPPT.pdf Good luck! 73, Jeff ACØC www.ac0c.com --Original Message-- From: tzikas tzik Sent: Tuesday, October 26, 2010 11:28 AM To: Carl Cc: amps@c
The mix is THE issue. The permeability of the type 6 powder is microscopic by comparison to type 31 at low HF. Get some type 31 material and it will swat those RFI flys like they were nothing. The ne
Bill, It really works. You have seen my antenna configuration and power preferences. So I can say without exaggeration that I have more personal real-life experience on this than most. ha ha ha. 73,
Paul, Low 2's and in this condition? wish I had heard that before picking up my A76pa. But once you get over this $2's point, you start running into the new Ameritron at $3K discussion. Finding Alpha
Carl, Oh, I thought the question was - will it bring $1200. Not rather, $2700. Need more coffee I guess. My guess is $2200. I figure if mint A76pa's are coming in at $1500, the newer vintage of this
The metering on these amps were originally setup for 2-tubes. The metering range was not expanded when the option for the 3rd tube models were introduced. Instead, ETO came out with a mod that double
The traditional monitor for a failed blower is a air pressure sensor. But this is harder to implement with a variable speed fan arrangement. I was working on a fail-safe for this case and thought a s
Colin, Wish he had come about 20 years ago and whispered "buy Google at the IPO." 73, Jeff ACØC www.ac0c.com --Original Message-- From: k7fm Sent: Monday, November 08, 2010 7:21 AM To: Jeff Blaine ;
Thanks Gary, I am familuar with those. The similar button-type is used on the HVAC stuff. They are easier to get than the TO220 sized which seems to be a single-supplier thing. The button type is lar
Paul, Oh, the sweet ACOM. What an amp! I saw the ACOM in action and marvelled at the silent and air-as-you-need-it-only variable speed arrangement. It was that amp that got me onto this love of varia
Very nice antenna. Wow... And the comment about wide band use in contests - does not make sense to me. It seems that's not a power issue per se, it's a clipping issue. Assuming no receiver-end overlo
Carl, Agree with you. And then some. The "western" worlds view of what is fair play is not universally held. In some cultures, rules are actually "suggested operation procedures" - and not hard-and-f