Recent content by 711

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

Is there a 7808 device on the side of the chassis?

Andy is the guru and has a huge write up on the PC122 series of radios and thought he was going to chime in. The modulation area is the same as the darlington schemes in the Galaxy/Ranger type radios. Your R186 would be the place to apply the diode/resistor NPC mod at . I never focus on the pep...

Yes, most all AM recievers pick up the carrier and both sidebands. Remove the carrier and you still have the information thats contained in either sideband. When you get fancy receivers with built in Synchronus Detectectors, it acually fills in the missing "carrier" and helps to reduce the...

When I started installing Mauldulators, I kept burning up TIP120’s once the finals went above 2 watts. I researched and tried the MGH6284 and stopped losing TIP120’s , passed the info to the Mauldulator guy lol now it’s discontinued. I’ll try the TIP142 for Laz’s circuit.

I guess I gotta make a board to try it now. My perf boards all look like poop lol.