So here I am tinkering around with a pretty much done deal home brew amp. Today I hooked up a variac to the HV transformer to bring this amp up slowly. Now I have questions since I popped a glitch re
I heard today that Peter Dahl Passed away and his daughter was taking over the company. Anyone confirm this? Chuck -KA1MWP _______________________________________________ Amps mailing list Amps@conte
I'm thinking of putting a PIC inside my amp and having it run a LCD display out front. I've seen it done, but am curious about The types of interference I'd end up with. I have my enclosure separated
Good Morning all, just to clear up some confusion, MagCap Engineering in Canton, will be making transformers for Harbach to PW Dahl's specs He had a TON of info over the years on amateur radio produc
Its on the front page of his website... Gents, I thought his wife passed a couple of weeks ago. Are you sure that he passed also? Man, if that's true, I am sorry to hear that. 73... Bob de k2ki first
Good day folks, Been thinking of selling or trading my homebuilt gu-84b amp I built a few years ago.. Maybe use the cash for a new project or! trade for a tl-922 that maybe needs work. The parts insi
I took the HV TXfmr out of my gu-84b amp ( I was looking to trade this) but changed my mind, lowering the plate voltage And putting in a "tetrode board kit" Have the new transformer coming in a few w
thanks to all who replied Chuck _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
Stop!!!!!!!!!!!!!!!!!! Send Amps mailing list submissions to amps@contesting.com To subscribe or unsubscribe via the World Wide Web, visit http://lists.contesting.com/mailman/listinfo/amps or, via em
Good morning, and sorry for the "stop" thingy, I had gotten about 30-40 "Issue 64"s in my Inbox...and I figured it was happening to everyone... Ok, I'll stop now. Thanks. And keep building those HF A
In some of my equipemnt building, I always used the small lettering rub on's that folks use with thier hobbies. they are usually white or black, probably from 1/16" to 1/8" in height and all you do i
I assembled the amp over the last few months using the TETRODE boards. Info: plate voltage = 2350 Grid 1 -65v Grid 2 365v RF Input 50ohm to ground You can see the schematic at http://home.comcast.net
Well, I got to the bottom of the NEGATIVE grid current this weekend..I had posted a question here asking about why I was seeing this and was it normal. After more research into this, I redid all my t
ok, quick question...(it'll be a poll) DO I leave the tube connected to the tank circuit and put on a 1/2w resistor or disconnect the tube from the tank to do the sweeps for tuning calculations some
I'm looking for a new bandswitch, the model 88 I have only has one wafer and I need 2 now. who besides, RF parts and Surplus sales has these things? I can wait for a local flea but like to shop! I'm
OK, so I had time last night to play more with my tank circuit. I'm having 2 problems I'm wanting to run by you reflector'ees :) I used several calculators to determine the inductance for the tank on
Herein lies some of my problem, I get different numbers with different calculators.. I would figure they would be close...of course, 970 to 1.2k isn't that far off BUT! some formula's want "Q"..I inp
OK, I stand corrected on the nomenclature I DID use the formula's and used C1, L1 and C2 I have the 500pf TUNE cap, 1000pf LOAD cap. plus I stuck in the 1000pf Door Knob cap with the LOAD cap.. I'll
http://boston.craigslist.org/nwb/ele/1152167744.html here is one for ya! Chuck _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailma
I read thru about 6 months of backissues here but didn't see mention of the russian door knob caps that are always on ebay. Anyone know which ones and the markings on them are OK for hi current use?