The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

does anyone know where i can get a manual for a heathkit SB-200?

does anyone know if the mods for the cherokee cbs1000 is the same/work on the nothpoint cbs1000. such as the channel mod,and the clarifier mod. thanks for looking.

i am new to beam antennas and am wanting to purchase my first beam. ok, with a a dual polarity beam, what is the difference in using/switching between horizontal and vertical. when and why would you run it horizontal(flatside) and vertical. hope i explained myself. thanks for reading post

i found some cold solder that was causing a bad connection down around L22 i cant remember exactly which resistor it was but the next time i have the radio apart i will be sure to note it and post it for you. i do know it was a factor soldered component. sorry i was in a hurry to get it working agai...

rick thanx for the help again got problem fixed radio works fine.

where and what is Q61 i am looking at the schematics and and dont see it anywhere. i am going to be working on the radio today hopefully. thanx...

i tried to start a new topic in the cb repair forum but it wouldnt let me. but anyways, my galaxy DX949, has no transmit and has dropped down to the mid 25 mhz, 25.415 i think. the freq. doesnt change when the channel selector is turned nor does the clarifier change it either. the radio worked fine ...

that would be great how many components do you think are missing to make it work. thanks again

rick i noticed the main board beside where the fine clarifier plugs to the main board there is place for a coarse clarifier with no plug end soldered to it, my question is when i replace the control pot for the clarifier could i hard wire a fine/coarse clarifier pot in its place i think if this coul...

RICK: i greatly appreciated the quick responses with helping me with the more clarifier shift and audio problem on my DX949. it works GREAT!! your knowledge of radios is great. thanks for all the help.

does it do anything with both switches up i noticed you didnt post and freqs. in this position. i would like to get to 27.605 and 27.635 but if not that is ok did you notice any resistors or cap. changed or removed that is another think i am worried about before i start to do this mod if it is just ...

hey mike that would be great. i would like to be able to higher freqs. for sideband use. thanks for the reply i will waiting to here back

rick: i did find a broken wire on the case side of the mic board once i fixed that i had great audio. you have been a great help on this, THANK YOU!!! oh yeah the clarifier shift works great too, but i think i will have to go to the 20k pot. once again thanks

no, i have been working 7 days a week and finding time to get back to it is hard to do. i tried to take voltage in tx but readings seem to very on my volt meter is it supposed to do this. you have been great help. i may take it to a local tech that does great work, he has done some work for me in th...

i guess what i am wanting to know is a 5k pot going to work the best versus a 1k or a 10k?

can anyone tell me what ohm the rf gain pot is on a president washington what i am wanting to do is use this knob for rf power knob, or what ohm pot would work the best for this mod.

RX:=+vdc
pin1=4.49
pin2=4.49
pin3=4.49
pin4=0
pin5=4.42
pin6=3.49
pin7=7.58
pin8=8.22
i will post tx a little later when i make it down to my work bench

i checked mic gain for broken wires it is the same in am and ssb ok i will try to explain this: with the radio facing you IC7 runs parallel with the right side of the case starting with the top left pin the pin closet to the dot RX: radio side case side +4.49 +8.22 +4.49 +7.58 +4.49 +3.49 0 +4.42 co...

does it matter how i unlocked the clarifier instead of removing r113 and d68, i removed jp195 and jp196 and jumped from +8vdc to j9 pin f1

i dont have any audio in pa mode with a pa speaker attched to radio i checked all work that i have done and dont see any issues.

i changed c130 to the 4pf and R153 to a 10k resistor. i was able to get 6kc's down and 5kc's up. right know it doesnt seem to tricky to use with stock pot in the radio, but i lost modulation, would this cause the radio not to talk. it keys up and that is it, no audio. thanks for all the help you hav...

i have done that already but i wanting more slide. my radio already has the 12k resistor in R153 the radio only slides 1.2khz up and down, but i am wanting to know if there is anyway to get more slide like 7 to 10kc's. thanks for the reply

is there anyway to make a galaxy dx949 shift more than 1.2 kc up and down. right now that is what i am getting(1.2 kc up/down). i would like to get 7 to 10 kc's up and down.

by channeling i mean add channels below 1 and/or above 40. not really interested in below 1 but more interested in above 40 for ssb use. thanks for the reply

what does anyone think of the jo gunn vertical antennas? looking for a stick type antenna, always been a jo gunn fan, just dont want to to mess with beams and rotors.

An adjustable talkback can be added to most electronic switching CB radios by soldering a 100 ohm pot in series with a 27 ohm resistor between the "Ext Spkr" jack ground terminal & the "PA Spkr" jack ground terminal. You can also do this with a switch to turn it on and off.

to operate radio once installed when both swithes are off the radio is in normal freq. when switch on p5 is on and p6 is off radio is in 26mhz. when p86 is on and p5 is off radio is in high 27mhz. with both switches on radio is in med. 27 mhz. channel 33 to 40 doesnt track they will always be on reg...

does anyone know how to channel a royce model 642 40ch am/usb/lsb.

hey ron will the fc-390 counter work on it like the galaxy and connex radios

i dont have a superstar radio yet i was if it had freq. counter jack before i ordered it. if it doesnt i will get a different radio

hey zodiac i have a washington with the mb8719 and the board is the pc-385. i was wondering if it could be hardwired to it

i was wondering if a superstar SS-3900 has an external freq. counter jack. i have a FC-390 and was wanting to use it on a radio.