cybernet as in Midland. 02A chip. This one looks just like a Boman. The receive on these radios are very good. Good clean audio with a 600 ohm stock mic. They are wired Midland , 1 is audio/ 2 is ground /3 is receive / 4 is transmit.
RV2 should be modulation , you power pots are in the topless can towards the back , should be 3 of them. Now , that radio should be around or over 30 years old. The pots are plastic with cermic plugs in them , hexogon shape , some put drops of glue into them and they will brake if you try and move them (not all) you want to go slow and easy on them.
If they don't move ? leave um alone , the modulation will bring up the pep swing if that's all you can get. These radios were never big swingers , if you got 20 pep out of them ? YOU GOT A GOOD ONE !! More like 5DK to 16 or so was the norm , at least what ever I saw out of those.
so your 4 watt DK as it is ain't bad , once you turn the modulation up you should get about 15 to 16 pep out of it. As I said , these radios with there own stock mic's have a telephone quality audio to them and the receive on them is very good. The 02A chip mods very easily for both upper and lower freeband channels. I usually just go for the one switch on the radio that will give me about 10 channels below channel 1 beings that it's only a AM radio.
This works great. But use pin 9 instead of 8.
1)Cut the Trace going to
PIN #11.
2)Solder a 3.3 K resistor across the cut.
3)Solder 1 leg of a
SPST switch to
PIN #8.
4)Solder the other leg to
PIN #11.
[SIZE=+2]1 - 26.805 . . . . . . . 4 - 26.845 . . . . . . . 7 - 26.875[/SIZE]
[SIZE=+2]2 - 26.815 . . . . . . . 5 - 26.855 . . . . . . . 8 - 26.895[/SIZE]
[SIZE=+2]3 - 26.825 . . . . . . . 6 - 26.865 . . . . . . . 9 - 26.905[/SIZE]
