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Post by part15engineer on May 16, 2018 18:33:38 GMT
I'm selling my 3 left over rangemaster and a procaster they are all in need of repair. I have a bag of spare parts for the procaster sent to me by chez. I Will take $900.00 for all four shipped as-is no returns. pics here,,, www.dropbox.com/sh/ezfe5pc9oov7i6l/AACmJlDJQR74HPsaAXG2fxxfa?dl=0The GPS units are not included in the sale. just the rangmeasters and a procaster (not pictured) and I have 6 frequencies modules 3x 1560 3x 1470 and 3 x module daughter boards to plug into rangemasters. Variety1560am AT gmail |
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Post by part15engineer on May 18, 2018 3:45:21 GMT
also have a perfectly working talking sign in weatherproof box i will include in this sale.
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Post by Boomer on May 18, 2018 4:30:55 GMT
I think the Procaster is a good transmitter, but I haven't had experiences with the others.
Would you happen to know what kind of issues the non-working transmitters have, or what might have happened to them to get where they are?
I noticed what looks like modifications on some of them, like a large cement resistor on the bottom of a Rangemaster board, and extra transformers, AC or audio?
The assumption is that a station had a network of those and did the mods for their requirements. Is the Procaster also modified, or is it just broken, and what might its damage consist of, and also is it an older or newer model? My old one has a square box, and newer ones are curvy. Is the antenna with the Procaster?
Do any of the oscillator boards (frequency modules) come with the transmitters?
I'm not really thinking of starting my own network yet, but individual transmitters might help others I'm in contact with to get started, if they can be fixed, and a spare Procaster would be nice to have.
Boomer
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Post by part15engineer on May 18, 2018 14:18:12 GMT
one rangemaster is untested which is a much older revision, one rangemaster has something loading down the supply thus it won't power up (possibly a diode), and the 3rd the audio cuts in and out (possibly a result of the modifications. the procaster had a low output issue i attempted to fix and just couldn't do it as my hands shake and i have poor eyesight so it is difficult these days for me to work on these small parts.
they also come with the mentioned daughter boards and frequency modules that i just paid over $400 for. $99 /board $25 / module plus $8 shipping.
there is absolutely nothing wrong with the talking sign.
Keith estimated $75-$150 / Ea to fix them. and Chez quoted $65 flat fee plus $25 return shipping to fix the procaster.
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Post by Boomer on May 18, 2018 20:20:54 GMT
Thank you for the info, I'll consider it and look up info such as schematics and maps of the Rangemaster board layouts, so I can see what's going on there.
If others are interested for your stations and can use it more than me or have more time, go for it.
Thanks for your descriptions, that helps interested parties!
Boomer
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Post by part15engineer on May 18, 2018 21:18:23 GMT
i'm actually waiting on an email from keith on what op amps were in them for the audio driver stage. i am going to remove the mods. it appears that it is simply an external board with a audio IC and transformer. the op amp is just bypassed with this contraption and the only other connection is involved in this mod appears to just be +/- DC tapped off the main board to power IC amp.
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Post by part15engineer on May 19, 2018 16:38:35 GMT
they all work now, i put them on my bench and they all generate RF and pass audio. if i sell them, price is now $500.00 ea. / Transmitter.
i have a Rev. D and 2 Ref. F
there are no RF mods done to these,
only audio section mods. upgraded transformers and modulator section.
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Post by part15engineer on May 20, 2018 15:21:02 GMT
The Rangemasters are NLA, i will still sell the Working Talking Sign in weatherproof box and the Procaster in need of repair for $400.00 for both this includes ConUS shipping and professional packing by shipping outlet. i will upload pictures of procaster and talking sign soon to the previously linked dropbox. i accept paypal, usps money order or check (must clear prior to shipment)
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Post by Boomer on May 21, 2018 22:25:13 GMT
Good that you took a second look at those and got them working again!
I couldn't tell what those modifications were about, and I was going to suggest talking to the station you got the rigs from to see what they'd done, if you could.
Boom
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Post by part15engineer on May 22, 2018 16:54:56 GMT
i dissected them and from what i could see they replaced the onboard audio transformer with a heftier one and replaced the simple op amp with a higher grade audio amp section.
they sound great on my optimod 9100B2.
i figure about $400.00 is reasonable for two part 15 certified TX's i am selling, including shipping packing and insurance. it will cost about $100.00 to have chez fix the procaster and the Talking Sign is in perfect condition and put in a very expensive nema weatherproof housing with a 3/8x24 thread to fit a standard 102" cb whip.
it will cost about 100.00 to ship these conus with packing and insurance etc.
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