Category Archives: Vintage

Phase Linear 2000 Pre-Amp Overhaul

Posted on October 6, 2014 by retrovoltage

I had a Phase Linear 2000 on the bench for a repair recently. It was running okay, but had some pops and clicks and the controls weren’t all that smooth. Time for an overhaul before anything worse cropped up! This … Continue reading →

Posted in Audio, Electronics, Hi-Fi, Projects, Stereo, Vintage | Tagged , , , , , , , , , | Leave a comment

Wherever you go – you’re headed for FUN with Motorola Portables

Posted on October 1, 2014 by retrovoltage

No matter where you’re going, you’re headed for more Fun with a Motorola Portable! They play anywhere – on their own batteries or on house current. You’ll like the dependable performance that comes from the ruggedly built chassis and shock-resistant … Continue reading →

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New Toy: HP 130C Oscilloscope

Posted on September 29, 2014 by retrovoltage

I’ve been looking for a nice balanced input oscilloscope to use as a bench audio scope for a bit, and I do enjoy some vintage test equipment…so I recently ended up with an HP 130C oscilloscope. This early ’60s tube … Continue reading →

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NordeMende Globetraveler 7/601 Rebuild

Posted on September 23, 2014 by retrovoltage

This rare and valuable example of late 1960s German engineering came through my shop recently, the NordeMende Globetraveler 7/601. Marketed as the Globetrotter in Europe, RCA already marketed a radio called the Globetrotter in the United States and so the … Continue reading →

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Marantz 2245 Stereophonic Receiver Rebuild

Posted on September 19, 2014 by retrovoltage

An iconic piece of kit from the golden age of hi fi just came through my shop: the Marantz 2245 Stereophonic Receiver. This fantastic receiver is in pretty good cosmetic shape, but its owner reported that it started acting up – it’d take … Continue reading →

Posted in Audio, Electronics, Hi-Fi, Projects, Stereo, Vintage | Tagged , , , , , , , , , , , | 7 Comments

New Toy: LogiMetrics 921A RF Signal Generator – Refurbished by KISS Electronics

Posted on September 17, 2014 by retrovoltage

I just had an unexpected run-in with Murphy’s Law and found myself needing a modulated signal generator in short order. Bad news when my modulated signal generators decided to die right when I went to perform an alignment! My Leader Standard … Continue reading →

Posted in Collections, Test Equipment, Toys, Vintage | Tagged , , , , , | 1 Comment

Parts of a Vintage Radio – Middle Tube Era

Posted on September 8, 2014 by retrovoltage

Photos with parts diagrams of a vintage tube radio – the Crosley 10-139, from about the middle of the tube era. Click each photo for full size.  

Posted in Commentary, Photos, Radios and Tubes, Resources, Vintage | Tagged , , , , , , , , , , , , , | 3 Comments

HP 1405A Plug-In Mystery: Which Is It?

Posted on September 1, 2014 by retrovoltage

I’m fixing up an HP 143A Wide-Screen Mainframe Oscilloscope, which has a very big selection of plug-ins to provide a variety of functions. The oscilloscope has symmetrical vertical and horizontal circuits, so it can be used as an X-Y amplifier … Continue reading →

Posted in Electronics, Gadgets, Photos, Test Equipment, Vintage | Tagged , , , , , , , , , , | 16 Comments

Wanted: Vintage HP 1400-Series Vertical Amplifier Plug-Ins for Oscilloscope

Posted on August 21, 2014 by retrovoltage

I’m looking for plugins for my HP 143A Wide-Screen Mainframe Oscilloscope which I’m in the process of restoring. I’d love to run it as a 15″ high speed X-Y display, and to do so needs matched vertical amplifier plugins in … Continue reading →

Posted in Electronics, Gadgets, Projects, Test Equipment, Vintage | Tagged , , , , , , , , , , , , | 6 Comments

New Toy: HP 143 Wide-Screen Oscilloscope Mainframe Restoration – [Part 1]

Posted on August 14, 2014 by retrovoltage

At the risk of becoming a test equipment collector, I am picking up a few pieces of vintage test equipment that need some work, but will be very useful pieces of shop gear as well as interesting pieces of history … Continue reading →

Posted in Collections, Electronics, Hardware, Projects, Test Equipment, Toys, Vintage | Tagged , , , , , , , , , , , , , , , , , , , , , | 13 Comments