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It's an EBM-Papst blower... model # is G2S097- DB61-08? (115 vac version). The 230 vac version is? #? G2S097- DB03 - 01 They both weigh 1.81 lbs, and both are galvanized. 26 cfm @ 0"? ?and 20 cfm

I just recently did the 10m mod on my L7 Tom W9TAB

The L7 uses a 75K pot in series with a 22K resistor. The L4B is 100K with no series resistor. I think your resistor change is still a good idea. Adding a TVS diode with a breakdown rating greater than

No problem, John. Us Canadians don’t get a lot of useful news these days as the feds have decided that we can’t share news on line. Our media is heavily subsidised by the Liberal Gov’t so is

"Jim VE7RF via groups.io" <jim.thom@...> wrote: The funny thing is that those of us that have been using Drake ALC with amplifiers for years don't seem to have any problems with it

Ah, thank you I did not realize that and the shipment was indeed Canada Post. I am full ostrich mode and avoid as much news as possible. I shall be patient. TU again. John / K0YQ

As a side note with an unclear memory, the ALC circuit in the L4B is different than the one in the L7. ?Failure of that 5K 7 watt resistor (which should be replaced with a 10-20 watt style) will

Roger, I worked on several L7s and don't remember access to that "stud and nut 10M lockout" being a problem in terms of access. ?As I recall, it was not in the area of the input tuning coils but

They also used a filter to prevent 11 meter operation in some of the amps. I don't know if they were the earlier L7's or the later ones? Merry Christmas to all and happy holidays. Tim WB8UHZ

We just had a postal strike that lasted 5 weeks. It ended a few days ago. That may be the problem! Things won’t be normal for a few weeks. Canada Post likes to go on strike around Xmas to cause the

By chance does anyone know the call sign or identity of the canadian ebay seller "sell my stuff now" that has long had the NOS drake tr/r7 LED modules available for sale on ebay?? I ordered a set 6

That’s the same combination I use for HV measurements. Fluke 80K-40 probe with the Fluke 87 DVM Tom W9TAB

It shouldn't unless your Fluke has a metal case. There is no return path with a non-metallic enclosure so both you and the meter should be OK. What could cause damage would be the cold end resistor

Ok. Thanks. That is a tiny crack to go through to get it. I tried to run my snake camera down in there to get a look but can't get it in there. I just removed the one small plate over the input tuning

We both used the? EBM-PAPST? (German made)? squirrel cage blower from the Ameritron AL-1500/AL-1200/ AL-82 amplifier.? ? They came in both a 115 and also a 230 vac version.? Ameritron used the?

Hello Clayton, This was all done so long ago I can't recall, yet that information was posted to the Drake board here. Jim (VE7RF) used a different blower (same housing yet 230VAC) I think. If I had to

IOW,? you are closing the barndoor......af

Roger, To my knowledge Drake used 3 different schemes to lockout 10/11 meters from the CB crowd. ?The one you have sounds like the one where there is a round head screw with/without a nut, something

I've looked down in the band switch from the bottom and see a small nut. I can't really see the head. What is the best way to get at it? Top or bottom? What type of tools did you use? Going in from

Joseph Where did you get your fan motor for your Drake L4B? Part numbers and cost? Merry Chirstmas 73”s