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KC5GTT Boerne Texas » Daiwa CN-801 HP Wattmeter Modification <gotproof>

:thumbup: Good news!!!!!!! :biggrin:

Uniden PC-122 Miscellaneous Data Service Section How-To Manual <gotproof><gotproof>:headbang

Hi, if your radio has the MB3756, pin 1 is the correct pin. The modification that involve pin 3 pin (mirror), is more than a decade old and is wrong. Instead of installing a jumper (R174), use a low value resistor. Some people replace the varicap with NTE612, NTE614 or M-65 Super diode or...

Use the TIP series, they're cheap. 2SB754 --- > TIP36

Hi, with the 11.1125 just isolate pin 10 from ground and you get 40 low channels (26.325~26.765). Switch pin 11 to ground and you get more low channels. If you uses 2 switches, one for each pin you get the low channels starting from 26.175. I'm late to work. See you later. :sneaky2:

Hi, replace 11.3258 to 11.1125. Works from 26.175 ~ 28.045. Greetings from the Caribbean!:thumbup1:

Hi, I'm finish my Uniden PC66a (IRF520N Mod). I used a different values 500 ohms + 1n4148 + 350k, something in between the EN369DR and EN369FN. At first I was disappointed 3W and 8W modulated, but after some changes (added 330 pF) in parallel at C46 and 10pF in parallel at...

IRF520N Hi, I'm still working in my Uniden PC66a (IRF520N Mod). In order to get a boost from the output, I installed a capacitor in parallel (33 ~ 100pf) at C46. At C42 location, I installed 10pF in parallel. Greetings from the Caribbean:wink:

Hi, first link (service manual) has the parts list (values). Greetings from the Caribbean:biggrin:

Hi, what exactly you are looking? It's in the main board? Let me know. http://www.cbtricks.com/radios/galaxy/dx959/index.htm http://www.cbtricks.com/radios/galaxy/dx959/graphics/dx959_ept069610z.gif

Hi, next time go with EKL components for 2scxxxx replacements. If you dont' have the skills, knowledge and tools simply don't do that. Next time buy a RF Amp and forget this modification. 50W impossible.:sneaky2:

Hi, you could use a TIP41c too. I'm starting to use the TIP series to upgrade voltage regulators. TIP41c is a TO-220, 100V, 6A. Exit 13 is right, don't buy the original again, you could use the other one exit 13 says (2sc1061) too. I upgraded the original 2SB754 to TIP36c on a RCI6900F...

Hi, I'm gonna give you a little trick. Go to your nearest auto part store and buy a 12v tester (the one that looks like a screwdriver). Next, connect in-line with the (red) 12vdc cable that comes from the power supply. Once the 12v tester light is off, you got it. Greetings from the...

Hi, 1. Tayda Electronics (taydaelectronics.com) - For diodes, caps, resistors, switches and transistors. They're based in Thailand but all my orders get shipped from Massachusetts to Puerto Rico and arrive in 4-5 days and the quality is very good. Minimun order is $5 and the shipping is...

Hi, for what I can see Quality Control at those factories isn't the best. Look at the solder side (secondary side), no one at the factory can set the right way the WAVE SOLDER settings and (primary side) those cables look very bad. Why RF Limited can produce this radios in the states, I'm...

Thats my point, look at the guy's radio. Someone clipped one resistor, messed with everything inside (RX, TX, PLL) and who know what more. There's other ways to achieve that without butchering the radio. VR-11 isn't working probably because the AMC circuit is disable. There's the main...

Bring the radio to a competent technician, stay away from the so-called "technicians". Put the radio back to specs., you could achieve good results without butchering the radio. And for last there isn't bullshit in my writings, is true. :whistle:

Hi, If R131 has been clipped, the AMC circuit shouldn't be working. IInstall it again. Is a (10k resistor) and this one connect the base of TR-26 (AMC) to ~ 8.0 VDC. Check for TR-26 (2SC945) is on place. If you disable the AMC circuit you gonna have a lot of problems on AM/SSB ...

Hi, this is my first post. 1. Take your time and do a good visual inspection on both sides. 2. Check TR-32 (ATT) removing TR-32 can disable the ALC circuit and can cause some warbling on SSB. 3. Check TR-31 (ALC AMP) Have a nice day.:thumbup1: