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  1. Toltec

    High input SWR PAL200MDX

    Thanks Nomad. Here's what I did, I added the coil as you said. However I didn't add it directly off the relay because the space there is very limited. Instead I added it directly on the tube socket where the signal comes in. SWR is down to 1.4 which is pretty decent. I used 10 turns...
  2. Toltec

    High input SWR PAL200MDX

    Thanks, great info! If I removed the driver tube, would that reduce my overall output power? Or would the the radio itself, perhaps turned up a bit, be enough to drive this thing to its full output power? If I had to I think I would prefer lowering my radio power vs losing access to my amps...
  3. Toltec

    High input SWR PAL200MDX

    Hey guys, I've been working on this little PAL 200MDX amplifier. I really like it but it's got some issues which I'm slowly resolving. The first is the inverter circuit was fried. I updated to a modern style circuit using an IC and some mosfets and it works like a charm now with more...
  4. Toltec

    Emperor TS-5010 alignment question

    Hmmm the PLL block seems to be different. Generally the alignment of this part o the radio seems fairly different on both of these service manuals. What other radios are there that use this same chassis?
  5. Toltec

    Emperor TS-5010 alignment question

    Hello all, Am trying to align this radio but the manual seems to have left out a small bit of info necessary for the VCO adjustment. http://www.cbtricks.com/radios/emperor/ts5010/index.htm Page 3 of the service manual gives you a chart with the voltages for each band however it does not at...
  6. Toltec

    Question about this clarifier Mod

    As I mentioned my main reason for not liking most of the clarifier mods that I found searching online was the uneveness of the clarifier. One side would barely make any change while the other would make a very large change. This one is roughly even on each side. I performed this again on a...
  7. Toltec

    Question about this clarifier Mod

    Alright I thought so. I actually like the mod. Like I said I've done it before and I've found that it gives me better slide on both halves of the clarifier than other mods I've done before. The use of the Vref pin definitely weirded me out though, I'm glad that's been cleared up. Other mods...
  8. Toltec

    Question about this clarifier Mod

    https://www.radiomods.co.nz/grantxl8719.html Has anyone here ever done clarifier mod Version 2 from the above link? Looks interesting. Basically it gives you a bit of a more even slide, promises 6khz up and 6khz down. I've done it before and it definitely works and is a bit more even than...
  9. Toltec

    Golden Falcon 400 tube amp

    Alright thanks! Im gonna call it fixed minus the tube that needs replacing.
  10. Toltec

    Golden Falcon 400 tube amp

    Alright I went ahead and added the protection diode as you suggested. The thing seems to have cheered up for the time being, that grid short seems to not be happening right now. However I do not have any reason to keep trusting that tube. I will try to replace it. What would you say is a...
  11. Toltec

    Golden Falcon 400 tube amp

    Alright I went ahead and flipped the diode and now the voltage is about 17 volts positive. The relays have also stopped activating without the radio being in transmit mode. The relay for the SSB pre amp has also started to work while before it was dead. I hooked the sucker up and sure...
  12. Toltec

    Golden Falcon 400 tube amp

    Tubes are 6LF6. There is already one negative bias circuit, that's where the other 1000uf cap is and that one is hooked with it's positive side to ground and is happy that way. Has about -17 volts across it. This goes through a 1.5K resistor and feeds the tubes on pins 5 and 9, first grid...
  13. Toltec

    Golden Falcon 400 tube amp

    Alright another update. Turns out our plate voltage is 800 volts. This puts 400 volts on each cap, they are in series. Caps are rated at 450 volts. That is slightly below 90% of 450 which is 405 volts. Powering it up reveales the B+ comes up as soon as the power switch goes up. Three of the...
  14. Toltec

    Golden Falcon 400 tube amp

    I ended up going with 100mfd @ 450. Someone with a similarly configured amplifier said that's what he had in his. I figure the extra headroom wont hurt, at least for the time being. The initial surge might be an issue though. Indeed both are in series. There is a 470K bleed resistor in...
  15. Toltec

    Golden Falcon 400 tube amp

    Aren't these capacitors usually wired in parallel BlowingSmoke? In that case wouldn't the values add up? There is two big caps missing, there are a couple of other smaller value ones left. The ones that are missing used to be in two big holders.
  16. Toltec

    Golden Falcon 400 tube amp

    Hey guys, I'm looking for some information on this Golden Falcon 400 tube amp. It has a total of 6 tubes, 2 drivers, 4 output. 6LQ6s. It is an AC powered amplifier. Power supply electrolytics have been removed and am trying to figure out what values to use as replacements. I can't seem to...