Does anyone know the current draw for the stock fan on an Alpha 77 series amp? Thanks & 73, Gary KA1J _______________________________________________ Amps mailing list Amps@contesting.com http://list
Not sure why my message didn't send properly but I'd sent: Got it. Thanks for the direct replies. I am finally getting around to adding a thermostat to the amp to allow slower fan rotation at idle an
Something I can add is when I first got this amp, the noise was louder than the AL-1500 that I'd been using. I removed the squirrel cage to look closely at it and there was a thin layer of dusty look
Hi Martin, They made several of the 77 line and I should have been more specific, this is a two tube variety. I'm not sure if it came originally with two or a 2nd was added along the way. It's an amp
Hi Martin, Thanks for the link & the info. There are some differences, our Plenum's are different and this one doesn't have the temperature switch in it. I will open it tomorrow and see what I can do
Gary Smith, WA6FGI of the West, Perfect. I am doing exactly that. It only makes sense, less components, same function and easy. Here's the component and at the bottom, the mounting fixture: https://w
I did in the 90's, for making the PS for a 3CX3000A7 amp. I bought it from a guy who "salvaged" it at work. I believe it was a 10KVA, very heavy. I had to "Unwind" the input wires in reverse directio
That was a good read. My first paying job other than selling night crawlers along the side of the road was working at the neighbor's farm diagonal to us when I was 11. My friend Bill (all of 10) & I
Took this a couple years back, thought I'd give you another laugh for the day. http://doctorgary.net/qrp.jpg 73 & have fun, Gary KA1J _______________________________________________ Amps mailing list
Shoehorn! ;) Gary KA1J _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
Folks, For years I've turned on the amp when needed or when anticipated I will likely use it as trying to work a DXpedetion or sked. Turning off the amp, I've waited till the tubes (pair of 8877 & an
Hi Jim, Yes, thanks, I meant the motor, the squirrel cage is fine. Although I did mention some years back that I gave the cage a thorough cleaning and went over it with a Dremel wire brush. There was
Kevin, I second Herb's suggestion. Isn't anyone better. 73, Gary KA1J _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinf
I have 3 push button bulbs that are failed in my SX and before I replace them, I should ask if there are there any gotchas I should be aware of when doing this? I haven't replaced them before and am
Thanks to the reflector I have the answer, it is done from the front of the switch. Nice it is so easy to do! 73, Gary KA1J _______________________________________________ Amps mailing list Amps@cont
Danny, I have a 77SX and came across Island Amplifier @ https://islandamplifier.com/contact/ & is John, KF6I. I bought an upgraded HV board & some lamps for the SX meters. He has reproduction panels
Here's a curiosity I'd be interested in getting input on. The 77SX seems to be easier to tune using the "B" setting, rather than the A. It used to be easier to tune on 160M using the A position on th
Here's a new bit that happened last night. I was on 160 and discovered the grid became excessive as I was transmitting, I had to back the loading cap back down to keep it WNL and the power was droppi
Folks, I have been having drifting issues on 160 only, not 80M or above, with my late model SX. I was thinking the 160 toroid transformers were overheating but the tape is not brown and I've been ass