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Author Topic: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.  (Read 5222 times)

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Online BrianHGTopic starter

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Re: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.
« Reply #25 on: March 09, 2022, 12:10:28 pm »
Quote from: free_electron on March 07, 2022, 06:41:46 pm
not much of  a teardown ... i want to see the actual circuitry !
I believe some of the units are on loan and since they are functional, they are too afraid of irreparably damaging something.

All it takes it one bending of a mid-air inductor spring to make re-tuning the thing impossible unless they have the complete tuning guide.
« Last Edit: March 09, 2022, 12:18:31 pm by BrianHG »
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Online BrianHGTopic starter

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Re: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.
« Reply #26 on: March 25, 2022, 12:01:13 am »
Part 14:


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Online BrianHGTopic starter

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Re: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.
« Reply #27 on: March 29, 2022, 05:38:22 pm »
Part 15:



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Online BrianHGTopic starter

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Re: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.
« Reply #28 on: May 07, 2022, 08:56:39 am »
Part 16: (see a reflection of a ham radio transmission to moon and back to earth)


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Online BrianHGTopic starter

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Re: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.
« Reply #29 on: July 03, 2022, 10:12:10 pm »
Some real sexy shots, #17: (Yes it's part 17, there is a typo in the beginning slide)



Some home made board replacements #18:


« Last Edit: July 03, 2022, 10:14:08 pm by BrianHG »
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Online BrianHGTopic starter

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Re: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.
« Reply #30 on: July 24, 2022, 05:46:48 am »
Part 19: It's complicated...


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Online BrianHGTopic starter

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Re: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.
« Reply #31 on: July 25, 2022, 09:06:31 pm »
Part 20:They got it working...


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Online BrianHGTopic starter

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Re: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.
« Reply #32 on: August 21, 2022, 05:51:05 am »
Part 21:

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Online BrianHGTopic starter

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Re: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.
« Reply #33 on: November 11, 2022, 02:00:59 am »
Part 22:


Part 23:
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Online BrianHGTopic starter

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Re: RF Porn, teardown of Apollo Comms, the S-Band Transponder and Amplifier.
« Reply #34 on: December 09, 2022, 08:50:49 am »
Part #24:


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