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Thread: Power supply...

  1. #21
    Master Navigator wa6mhz's Avatar
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    You should indeed grab that Astron. I only trust my rigs on Astrons. It is foolish to put a several Hundred dollar radio on a junk power supply. With that Micronta, your greatest danger is popping the pass transistor which would put the raw DC Voltage on the radio OVER VOLTAGING it. Radios can survive Reverse polarity most of the time due to protection diodes. But overvoltage will COOK the internal circuitry, even a low current overvoltage.
    I woudn't hook up that very nice FT-350 to anything but a good quality bulletproof Astron (which has Overvoltage Protection built in) and Current limiting.

  2. #22
    Master Navigator K9CCH's Avatar
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    Glad I asked.

    we are in discussion on the Astron. I'm just trying to figure out how I'm going to finance the radio, power supply, and everything. My hobbies have to support themselves so I'm thinking I'm going to sell off a lens that I'm not using...


  3. #23
    SK Member 05/26/2022 WX7P's Avatar
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    Quote Originally Posted by K9CCH View Post
    Glad I asked.

    we are in discussion on the Astron. I'm just trying to figure out how I'm going to finance the radio, power supply, and everything. My hobbies have to support themselves so I'm thinking I'm going to sell off a lens that I'm not using...
    More overtime. that's the ticket
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  4. #24
    La Rata Del Desierto K7SGJ's Avatar
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    Quote Originally Posted by K9CCH View Post
    Glad I asked.

    we are in discussion on the Astron. I'm just trying to figure out how I'm going to finance the radio, power supply, and everything. My hobbies have to support themselves so I'm thinking I'm going to sell off a lens that I'm not using...
    Are you sure you can get by with just one eye?
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  5. #25
    Master Navigator K9CCH's Avatar
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    Quote Originally Posted by WU9G View Post
    More overtime. that's the ticket


    They BARELY pay me straight time. My little $14/hr public safety pay doesn't really give enough room for hobbies.


  6. #26
    Orca Whisperer W3WN's Avatar
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    Quote Originally Posted by K9CCH View Post
    Glad I asked.

    we are in discussion on the Astron. I'm just trying to figure out how I'm going to finance the radio, power supply, and everything. My hobbies have to support themselves so I'm thinking I'm going to sell off a lens that I'm not using...
    Good! I'm sure you'll be able to work something out... and it will be well worth it.

    Did you know that Kenwood used to OEM some of the Astron supplies for use with their HF rigs? Believe it... I used to sell them, back in the day. At the time, the RS-20A was $99 MSRP, the Kenwood version (KPS-20? I'm not recalling the exact model number offhand) $149. I could put the two side by side, the only difference was the side of the front panel that the power switch was mounted on. Yet people would buy the Kenwood version... think about that one. (And no, they didn't "match" the Kenwood HF rig du jour, which was the TS-430S... the official matching PS with speaker was $199 MSRP)

    I've used Astron supplies since I owned a 430 back in the day... mid 1980's. I've had exactly two problems. Bridge rectifier blew in the first RS-20A, which I bought used... and may have been caused by my brother-in-law, which is another story. Replaced it, and the unit performed flawlessly until I disposed of it with the 430 (also another story). Second RS-20 (also got used, trade with W3SRL) ran multiple rigs over about 15 years. It was powered on almost continuously during that time, until a power surge took out the voltage regulator board. Bought the RS-35A noted above to replace it, it was cheaper than buying a replacement board from Astron. KB3ERQ now has that unit, to experiment with to see if he can get it going again.

    I've also had an RS-12A (been running the V/UHF rig for over 25 years), a couple of RS-7's, and a host of others from time to time. Treat them decently, they'll run almost forever.
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  7. #27
    'Grumpy old bastid' kb2vxa's Avatar
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    All this talk about power supplies and everybody forgot that a battery is a flywheel, that barely able to power a CB supply is an engine. I had no problem powering even a 100W Part 90 FM transceiver re-tuned for ham use off a large car battery kept charged by a supply like that, just left it on 24/7. KISS, keep it simple stupid. Eh, now I have a 60A regulated supply somebody gave me, there is a Santa Claus after all.
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  8. #28
    Master Navigator K9CCH's Avatar
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    Quote Originally Posted by kb2vxa View Post
    All this talk about power supplies and everybody forgot that a battery is a flywheel, that barely able to power a CB supply is an engine. I had no problem powering even a 100W Part 90 FM transceiver re-tuned for ham use off a large car battery kept charged by a supply like that, just left it on 24/7. KISS, keep it simple stupid. Eh, now I have a 60A regulated supply somebody gave me, there is a Santa Claus after all.

    So you're saying a car battery would power the radio, and the 1.75a power supply would recharge the battery?


  9. #29
    SK Member 05/26/2022 WX7P's Avatar
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    Quote Originally Posted by K9CCH View Post
    They BARELY pay me straight time. My little $14/hr public safety pay doesn't really give enough room for hobbies.
    You should move to Marin County, CA.

    I had some business dealings with Marin based dispatcher was making 100K plus (with overtime) back in the mid oughts.

    Granted, it is a wee bit more expensive to live there (San Rafael, CA-reference point)

    You could work at the Blue Roof Inn! AKA the Marin County Jail/Courthouse! Designed by Frank Lloyd Wright!

    SanRafael.jpg
    http://i138.photobucket.com/albums/q275/nx6d/ham%20radio/SANY1260.jpg

  10. #30
    Pope Carlo l NQ6U's Avatar
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    Quote Originally Posted by WU9G View Post
    You could work at the Blue Roof Inn! AKA the Marin County Jail/Courthouse! Designed by Frank Lloyd Wright!

    SanRafael.jpg
    That place is so kewl! it's like an alien artifact that somehow ended up in the Marin County hills.
    All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.

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