coupled system is to absolutely minimize waveform tilt and/or overshoot. coupled modulators (like a pulse width modulator). coupled modulators (like this one) as it is in D.C. Just a note That low-level negative peak limiter is not as effective in A.C. Just have to pay attention and mind your P's and Q's! Its amazing how many of the OT op's survived. Your lucky to have a good source for sheet metal! The old buzzard rigs of the 20 and 30's were commonly open frame construction. A DC referenced resistor in the negative lead of plate supply ground referenced would be a great reference to use to set a trip point circuit which in turn would drive a FET to disable the screen voltage. If you were using them as tetrodes, you could dump the screen voltage if you had excessive plate current. I believe your using the 4/1 in a triode configuration. Wow, that's a lot of diodes but I understand why your doing it. Now when doesn't one of Steve's circuits not work out! If its his design I am sure it will do the deed! It's scary with everything exposed, even for a day of so.
#Deltacad turn off snap to grid driver
If the QIX negative peak limiter circuit works out, I will probably mount it in there, since it feeds the SS driver anyway. The guy got POed and told Corky that he didn't build his own refrigerator or washing machine, so why shud he build his own power supply? (appliance operator circa 1964) He said he didn't currently have the money to buy the matching power supply for the 32S3. An older, well dressed ham came in who had just bought a brand new Collins S line. I was a little JN standing at the counter at Hatry's in Hartford, a Collins ham dealer. It's scary with everything exposed, even for a day of so.įred, I figgered you, especially, homebrewed all your parts for the 51 watt rig. I'm tempted to build the outer cabinets before doing any testing. Picked up some aluminum sheet at the scrap yard yesterday. I started the station interconnections process last night and might be ready to fire up the RF deck followed by the modulator and assorted audio stuff soon. I could use ALL bias from the SS driver board, but wanted the diodes as a failsafe in case the SS driver shorted out. It uses 140 forward biased diodes on a Plexi board and a big rotary switch. Well, I just built a diode stack for the modulator bias.
Now I'm having a problem locating it close to the modulator deck to keep the audio input and NFB leads as short as possible.īut there's a lot of room in there to add stuff. Yeah, Joe, the SS driver turned out bigger than I expected due to the already-built power supply with the tall board. Make sure you get on the air before you tear it down to build something different.Īnd yes, junk boxes are wonderful things to have! I got a kick out of the SS audio driver! Its big enough to be a tube driver with a pair of 2A3's! Looks great and can't want to hear it on the air.
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