Recent content by 711

I made the purple one about 10years ago or so , the black one was done a few years ago. I normally mount mine soldered to a tuning can. The groundplane is connected to the tabs in the corners. I wish could have gotten a One Big Punch or a Telstar Voicemax before they were discontinued

Just bought this one on eBay last week, nice to have one for the museum lol

Lester copied the board and is selling it for more than Bob originally sold it for. My version is not the exact same but works the same. I didn’t add the relay , I just repurposed a radios switch for the on and off. Lester likes copying other people crap and selling it as his enhanced models...

The CP1 did its clipping in the 4558 mic preamp feedback loop, the SP1a would most likely be inserted before the CP1 but to me it would be counter productive. The 4558’s purpose is to bring the mic’s signal up to line level to drive the Series pass regulator aka modulator. You could drive the...

David Dowler has been floating his latest revision for the Mauldulator board for a couple of years, last thing that was in the works was someone to install and provide customer “support”. I don’t think MMM has made a batch of his rev 2 boards in a few years

I posted a set in your other post but Goldfinger took over the forum when it started decline , instead of letting it go into oblivion, he wanted to help cbers with repairs, hifi mod or whatever cb questions. Just a nice guy for our hobby. Hope the schematic I posted helped

Check TR37 bias transistor, I’ve seen these go bad in 148,2000 and Madison’s with low to no power out

I placed a set over at wwpdx

Courtesy of Buttfuzz: MODEL: RANGER RCI-2950 PROBLEM: Unit fails to operate on initial turn on. Turning the radio off then back on causes the radio to operate. REMEDY: This problem is usually caused by the V.C.O. being out of lock. In order to prevent future occurrences, it will be necessary to...

This sounds exactly the same as a first gen 2950 issue I had. Radio would lose VCO voltage until I either turned it off and on again or adjust the VCO pot down and up to get both Tx and RX back. I followed Buttfuz’s tip and tricks he wrote about a 2950 and it was a cap in the VCO similar to what...

Last we emailed each other back in 2016 over a few carrier mods

My $.02 which don’t amount to much is doing an NPC mod the AMC is already disabled. I put the ownership on the operator and their use of the mic gain knob. You do have an anomaly in the AMC path causing oscillation which at this point is above my pay grade maybe Andy could do one of his thorough...

The compressor was a huge disappointment, the values that were used were very extreme. The Comp ratio at minimum was almost 8:1 (15k)and with a 500k pot making the only workable range at the bottom 1/4 of the pots range. Using the SSM2166 data sheet and EQPlus as a reference I tamed the...

https://www.ebay.com/itm/312529661211?mkcid=1&mkrid=711-53200-19255-0&siteid=0&campid=5336136228&customid=&toolid=10001&mkevt=1

if you search on ebay or I think amazon you find they sell a pack of 10 or 25 if I remember correctly and I had to pull a tab up as it was a momentary lock on the push portion of the trigger. Worked perfectly on my Road Devil and 575 mics