/*snip*/ I don't see why the ALC can't be adjusted so the amplifier is never over driven and is kept at the desired operating drive level. I actually thought that was the idea. -- 73 Ron KA4INM - All
Most people build amplifiers from HAM-Fest parts, that's what HAM-Fests are for. If you build and use it, it doesn't need to be certified. -- 73 Ron KA4INM - All E-mail sent to this address shall lin
I'm not Carl KM1H, but as we discuss amplifier design repairs and modifications, (such as changing the tube type) ignoring the practices and design features from professional broadcast equipment desi
The RF Voltage from 100 Watts into 50 Ohms is like 50 Volts, so that may be a problem. You didn't say both are operated as grounded grid. Are they? What is the F-K V. rating? -- 73 Ron KA4INM - All E
Any tuning will alter the phase (delay) and gain of each amplifier. -- Ron - KA4INM _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/m
I wasn't there, but I think it was because of poor quality control. -- Ron - KA4INM _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/m
I bought a new roll (1 lb) of my favorite, Ersin multicore solder (very thin .022" = .55 mm, type SN63 made in the USA ???) sealed in shrink wrap for $7 at the Orlando HAMfest last February, I will b
putting together a 3200v ps, I am going to use chassis mount bleeder resistors mounted on an aluminum plate (grounded) , will they handle the voltage OK without arc over or would ceramic bleeders wi
By definition, current flow is the flow of charges. The fact that negative charges are embodied by a particle (an electron) is interesting, but irrelevant. Negative charges flow in one direction; po
Hi Douglas W9IIX Johnson: << I am installing a meter to measure plate voltage 1-5000v@ 1a dc, the meter has a 1ma fs rating. the serial resistance I have made up in the past has been 3 watt metal fil
KVA is same as KW. 2400 VA is 2400 watts. kVA and kW are not the same, The difference between kVA and kW is the power factor. -- 73 Ron KA4INM - All E-mail sent to this address shall linger in the G
Guys.... it pains me to see you screw around with a transformer which was designed to cook food. Save your pennies, get a real Peter Dahl transformer and be done with it. Build it into a universal p
I could sure use a simple-minded explanation of how to connect my dual-trace scope in order to get a display of system timing. The description below, while I'm sure it is correct, doesn't get this h
Does anyone know what the record is for the most watts ever run on amateur radio? Transmitted watts, not ERP. Just curious about the number. No call signs needed. Thanks. ~Jordan WJ2W Legal operatio
How about adding a tertiary winding to the step-up transformer, and use that for the out-of-phase neutralizing signal? One end of the winding to ground, the other end to a neut. capacitor connected
My sense is that you are better of buying a used 50v supply from the telco equipment industry than you are trying to build one. I especially like the Valere rectifiers, like this one: http://www.eba
**Harbach Electronics LLC Discontinuing Peter W. Dahl Line of Transformers and Magnetics as of February 14, 2013** http://www.harbachelectronics.com/ -- Ron KA4INM - Youvan's corollary: Every action
Help me out here guys... I thought that conventional power supplies (transformer-bridge-filter) were relatively clean on reflected harmonics? No, the transformer is all inductive and the diodes cond
On 3/7/2013 3:07 PM, KM5VI wrote: I thought that conventional power supplies (transformer-bridge-filter) were relatively clean on reflected harmonics? Nope! Power line harmonics are the result of cu
RMS Watts is in the same silly season class as Sears and some others "Peak Horsepower" rating of electrical motors. REPLY: by Bill W6WRT Nothing wrong with rating peak horsepower in the sense of pow