Category Archives: Radio

Building the SSTRAN Part 15 Low Power AM Transmitter Kit

Posted on February 21, 2016 by jwk

Have a bunch of old tube radios, but nothing good on the air in your area? That’s a common problem, and SSTRAN has the solution! I just built one of these to give as a gift, and thought I’d write up … Continue reading →

Posted in DIY, Electronics, Projects, Radio | Tagged , , , , | 3 Comments

Philips High Fidelity Laboratories 673 Tuner Repair and Alignment

Posted on January 4, 2016 by jwk

From the Rain City Audio Repair Blog: This Philips 673 tuner just came through the shop for an overhaul and adjustment. It was working for the most part but the alignment had shifted and there was room for improvement on … Continue reading →

Posted in Audio, Electronics, Radio, Vintage | Tagged , , , | 3 Comments

Antenna Distribution for AM Radios

Posted on October 24, 2015 by jwk

I’ve had a few questions come my way about antenna distribution systems for AM radios, specifically to connect something like a large attic antenna to multiple radios at once. There’s a lot out there designed for VHF/UHF or CATV signals, … Continue reading →

Posted in DIY, Electronics, Gadgets, Radio, Resources | Tagged , , , , , , , , | 9 Comments

Telefunken Bajazzo Sport 201 Transistor Radio

Posted on March 30, 2015 by jwk

Cross-posted from the Rain City Audio Repair Blog: I don’t typically service portable transistor radios, but I make an occasional exception for something especially unique or interesting. The Telefunken Bajazzo Sport 201 is no exception – it’s a high end … Continue reading →

Posted in Electronics, Projects, Radio, Vintage | Tagged , , , , , | 4 Comments

Sherwood S2000-III Tube FM Tuner Repair

Posted on January 8, 2015 by jwk

Cross-posted from the Rain City Audio Repair Blog: Sherwood made some excellent hi-fi FM tuners back in the day, and this S2000-III is no exception. Unfortunately, there’s not a lot of documentation about this model available, but that didn’t stop … Continue reading →

Posted in Audio, Electronics, Hi-Fi, Radio, Radios and Tubes, Vintage | Tagged , , , , | Leave a comment

Philco 42-365 Antique Radio Repair

Posted on December 15, 2014 by jwk

Cross-posted from the Rain City Audio Repair Blog: This Philco 42-365 came to the shop in need of major repairs. It was missing its dial string, lamps, and the power transformer had melted down due to a failure in the … Continue reading →

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High Stability TCXO Upgrade for RTLSDR Dongles

Posted on October 11, 2014 by jwk

Over at RTL-SDR.com, I found out about a great new product that’s just come out for more precise SDR applications: a customized R820T-based stick with a high stability temperature compensated crystal oscillator (TCXO) in place of the stock crystal, giving … Continue reading →

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1962 Coronet 6 Transistor Shirt-Pocket Radio TRN-6

Posted on June 23, 2014 by jwk

This rare early shirt-pocket transistor radio, the Coronet TRN-6, needed a few new capacitors to sound its best. It delivers surprising performance from such a small package! Plenty of tear-down photos in this article.

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Check it out at Rain City Audio Continue reading →

Posted in Radio, Radios and Tubes, Vintage | Tagged , , , , , , , , , , , , , , , | Leave a comment

KN0CK Amplified RTLSDR for HF Rev. 5 is Back!

Posted on June 5, 2014 by jwk

After some technical difficulties, the KN0CK Amplified RTLSDR for HF Rev. 5 is back! Now for sale directly through blog.KF7LZE, and including free shipping in the United States, and a free PAL to BNC adapter with purchase! Everything you need to … Continue reading →

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KN0CK and KF7LZE RTLSDR for HF Back In Stock at Easy-Kits.com!

Posted on March 11, 2014 by jwk

Edit: Easy-Kits.com is offline, but still for sale! Click through.  We’ve completed the next production run of Rev 5 direct-sampling RTLSDR with HF converters by KN0CK ! Rev 5 Direct Sampling HF RTLSDR with Amplifier

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