[HamWAN PSDR] OT: Various RF Bits Free To Good Home

[Nigel Vander Houwen]

Cleaning up the garage. I have some various RF/Lab related bits that are free to a good home. Please contact me off-list if you’re interested. Pick up only (Everett), won’t be shipping anything.

Decibel DB4259S18R-A 806-824MHz Band Pass (?) filter. Not sure how far it can be tuned.
https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8556.jpeg <https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8556.jpeg>

NARDA-WEST Duplexer Model AFD21A-8289-01. Bands are up in the mid-high 800MHz ranges, see photo for plots. Again, not sure how far it can be tuned.
https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8557.jpeg <https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8557.jpeg>
https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8558.jpeg <https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8558.jpeg>
https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/NARDA-Duplexer.jpg <https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/NARDA-Duplexer.jpg>

Old tube-based Motorola frequency generator. Model T-1034C. IIRC this uses a tuned cavity, and the big lever knob in the middle lets you select from a few bands from 25MHz up to 960MHz. (25-32MHz, 32-41MHz, 41-54MHz, 130-175MHz, 400-470MHz, 890-960MHz). It’s not exactly a calibrated thing, so you’d probably want some sort of counter to be able to see and fine tune the freq.
https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8559.jpeg <https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8559.jpeg>
https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8560.jpeg <https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8560.jpeg>

Heathkit Model IO-103 Oscilloscope. Comes with Heathkit Model ID-101 Electronic Switch.
https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8561.jpeg <https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8561.jpeg>
https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8562.jpeg <https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8562.jpeg>

*NON WORKING - Possibly repairable* HP 5345A Electronic Counter, 0-500MHz. Additionally has the GPIB interface board, which seems rare for instruments of this vintage. No internal oscillator, but is set up to accept external 10MHz reference. When working, is a really nice counter, but took a power surge. Blew the fuse, I replaced the fuse, it powers on, but shows oddly on the display. Haven’t dug into it further than that. I have an electronic version of the owners & service manual if you can’t find it easily.
https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8563.jpeg <https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8563.jpeg>
https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8564.jpeg <https://digitalnigel.com/wordpress/wp-content/uploads/2021/04/IMG_8564.jpeg>

Thanks,
Nigel
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