Author Topic: Schematics for Red E-Field Pre-Amplifier  (Read 136 times)

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Offline Silversword

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Schematics for Red E-Field Pre-Amplifier
« on: January 06, 2022, 05:24:22 PM »
Hi All,

Happy New Year for a better one.

During the past few rain storms here. it seems the my red E-field pre-amplifier got damp and it seems that the trace on the board got damaged.

Does, anyone have a schematic for the pre-amp so I can jumper the damaged trace on the board and hope that the components are still good? There was some corrosion around the coax connector as well. Hope that this connector is also still okay.

Thanks for any suggestions or input for this issue.

If the board is really bad might ask if anyone has a spare pre-amp that they might not be using and would like to depart with it, let me know for arrangements.

Aloha,

--Stan Y.
  Maui, Hawaii


 
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Offline Cutty Sark Sailor

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Re: Schematics for Red E-Field Pre-Amplifier
« Reply #1 on: January 06, 2022, 06:34:33 PM »
Hey Lonesome Stan!
Bad Luck :cry:
https://frankfortweather.us/blitzblitz/Red%20E.pdf

If that F connector is corroded, best replace it... it's integral to the impedence and filter assy for E signals, and carries the supply voltage also.
(I have swapped E preamps back and forth between Reds and Blues, so if can't get joy on a RED, maybe somebody has a BLUE E preamp, especially if early version.This is ONLY for the E preamp module.) Main difference between two is bandpass, and RED used the power LED as ref voltage establishment for IC1... was a special select diode series.

Stay safe and healthy!
Mike
« Last Edit: January 06, 2022, 06:44:10 PM by Cutty Sark Sailor »
 

Offline Silversword

  • --Stan Y.
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    • Up Country Maui Weather
Re: Schematics for Red E-Field Pre-Amplifier
« Reply #2 on: January 06, 2022, 08:45:51 PM »
Hi Mike,

Thanks for the suggestion on the F-connector and see if I can find a replacement if need be.

Also thanks for the schematics for this unit and see if it can be revived.

Likewise, stay safe and healthy over there.

I don't know if am Lonesome per se, as I see three other systems in Hawaii, one on Kauai Island, one here on Haleakala and one on the Big Island of Hawaii but are run by some kind of company.  I guess I am the only individual here in the Islands. so Lonesome Me.

Aloha,

--Lonesome Stan Y.
   Maui, Hawaii
Stan Y. - KH6HHG - Maui, Hawaii --- Blitzortung ID: 993 --- FlightRadar24 ID: F-PHOG1
Weather Display 10.37s Build 120
WDL 6.05
MS Windows 7 Pro
Dell Optiplex GX280-Intel Pentium 4 CPU 3.00GHz, 4 GB RAM
Davis Vantage Pro 2+ Wireless
1-Wire Lighting
Webcam: Axis 211

 

anything