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Search results

  1. T

    PCB board makers in USA/Canada

    Any knowledge of any good priced PCB board makers in USA or Canada? Looking to have some pcbs made and have a found a few in USA and some do not respond. thanks in advance for the help
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    Surface mount soldering question?

    Anyone out here doing surface mount soldering. If so what are you using for flux. Im looking for a good Gel flux not the rosen core flux liquid. I see on ebay in syringes but was looking to get in a bottle. So if you are using a Gel flux what name brand. thanks for any help.
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    How to Identify these parts pictured

    So im working on a project and these parts I need some info on. How to Identify the diode part # and size surface mount. How to Identify the capacitor value and size surface mount. The resistor pack is a 102+1k value, what size is the surface mount. thanks for any info in Identifying these...
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    5KC/half channel mod for mb8719 or pll mc145106 info needed

    Has anyone tried or have directions for the pll 8719 or the pll mc145106 for a 5kc jump on the channels like half channels. Not interested in doing the clarifier expansion its already unlocked and just want to do it with the pll if possible. Been looking but not much info for a easy mod (maybe...
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    Small 3pole 5/6 position info needed.

    Im looking for some small profile 3 pole 5 or 6 position rotary switch. I searched last night and this morning on Ebay and Ali express. with no good results. I need the small profile to fit in a small part box or a radio. Any help much appreciated. here is a picture of a switch but its a 2...
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    Radio Shack TRC490 mode switch needed.

    Im looking for a good AM SSB switch the one in radio is scratchy when switching modes. I tried to shoot some contact cleaner inside the shaft but the switch seems sealed/closed. I'm also sure its the same as a Uniden Washington pll 8734/8719. Has anyone replaced with something that will work...
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    Am I doing something wrong need help?

    So I decided to align a trc490 ssb radio same as a washington with 8719/8734. PC 385 board radio came with a mb8734 and was changed to a mb8719 with the 11.3258 xtal. In the service manual says the following at TP1 lead of r157. So I clipped onto r157 and tp1 adjust L20 for 34.92500 and I...
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    Can the freq counter be added to monitor AM channels

    can the pictured freq counter be added to a cobra 148gtl and A Washington base? Where is the best point on a Washington base with pll 8734/8719 to attach wire. What is the offset for these radios to be set on freq counter? I just need to do Am channels at this time to monitor. thanks
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    Frequency counter easy internal hookup info needed

    Is there a cheap frequency counter out there that will work on all the cobra president uniden radios that use the mb8719 and mb8734 pll. Looking to wire one internally in the radio and have it sit on top. Of course a cable will be needed to connect inside and then also power the counter. Need...
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    MC145106P info needed

    Would anyone know if there is a post or write up on a channel mod for the mb8719 and mb8734 radios replacing it with a MC145106P pll I know the MC145106p chip you can get more channels out of it than the mb8719 plls. I have seen an actual kit you just plug into the removed 8719 and replaced...
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    Need some help with designing a 3 position crystal switch.

    Wondering if some on the forum has made a 3 position or more crystal switch. Looking to do this with transistors. I tried a circuit and did not work Ill post the picture of what I tried. I don't need an oscillator just something to switch in 3 crystals 4 xtals the most. I tried the below and...
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    Cherokee Nightrider 150 extra channels

    Are there any mods for these radios that have the pll encased in black epoxy? Someone has one and wants extra channels. here is a picture of the pll in black epoxy, has anyone attempted to do extra channels or has some info on doing this. thanks
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    RoadKing Cb radios info needed

    Who makes RoadKing RK-CB radios? Are there schematics for them? Are they similar to other made radios circuit wise? Looked on cbtricks and no info that I could find. thanks
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    Need some 139xlr older info.

    I know you can do the pll upd858 mod for extra channels. I see there was an expo Kit Q for the radio. I'm trying to find what that kit did. Was it toggle switch kit Was it an Expo 100 Kit with crystals if so what was the frequencies of the kit? thanks
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    Xtals needed

    I have a friend Im trying to help out. He need these xtals I think for a Yaseu radio 40.9875mhz 41.4875mhz Looked every where and nothing Is there anything else that could be used in place of the xtals?
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    Programmable Oscillator for cb radio

    I was wondering if anyone here has fooled around with the programmable oscillators. I see a youtube video where someone used one for a cobra 29 for extra channels. Was wondering since crystals are very hard to find and cost too much if one could be programmed for say 11.4758mhz to be used to get...
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    Convert the extension cb jack to line out audio

    Hi. Looking to see if anyone has any suggestions to convert a cb radio extension speaker jack to a low level line out audio? Just needs to be 1 channel as the ext jack is. I need this for recording purposes as the regular audio is over powering and does not sound good so was hoping to try...
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    Cobra radio with upd 858pll

    I installed a channel kit in my cobra 29gtl. The Am radios with the 858 dont broadband too well for power. I installed a kit with regular 40 and 40 below channel 1 so from 27.405 down to 26.515. The radio is quite hard to get decent power from top to bottom. I have a channel kit in my Cobra...
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    Schematics needed for these AM radio with upd 858

    Looking for some schematics for these radios with the pll upd858. All Am radios and dont need all just 1 of each if possible. Im looking for the 36.380 tripler crystal circuit location in the radio a copy of that location would be great if possible. I searched the internet and hard to find...
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    Power supply problem need help

    I have a 13.5 volt power supply that is putting out the voltage but the amps are not there under a load the voltage will drop way down. What part should I look for to be bad or would it be 1 of the output transistors. Have not had time to check it out yet. thanks