Archive for December, 2017:

2017-12-31 Happy New Year!

Happy New Year!

2017-12-30 Zenith Royal 755LK

I tried to to post this to the FB group Vintage Transistor Radios, but the FB app crashed and I lost several lines of my typing.  Makes me angry! The radio was not making any sound.  I removed the chassis from the case.  I found the ‘battery saver’ slide switch had been forced apart.  I

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2017-12-29 Shipping Costs Kill Good Deals

From FB group Vintage Transistor Radios My comment about a radio for AU$5400 on eBay. Dreaming, or more like wishing and hoping for a sucker to buy it.  But at least he had enough sense to add ‘or best offer’.  If someone offers a hundred, maybe he’ll take it. I’ve had a few successes with

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2017-12-25 Merry Xmas


2017-12-21 Message Waiting Light Headaches

From FB group Bell Telephone Ohhhhh, Ed Vaughn, you gave me a big headache.  Those message waiting lights… We had a 1200 baud MW line directly from the CO to our PBXes, and one PBX then distributed it to dozens of others in the district over the network, not by ethernet, but by XNS over

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2017-12-16 Olympic 860 Radio Capacitor Replacement 

I was the only bidder on a lot of three radios, one of them is an Olympic model 860 AM transistor radio.  This radio uses four AA cells for a total of 6 volts DC. Overall the radio is in good condition – no chips or cracks.  I powered it up and if I turned

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2017-12-15  Royal 500 Capacitors Replaced

From FB group Electronics Hobbyists, regarding the Zenith Royal 500 radios. Clyde Hendrickson  There are two 50 uF, 10V electrolytic capacitors under the battery holder.  Replace them with 47 uF, 10 or 16 volts. There is also a smaller capacitor next to the other, it might be a 3 uF, or a 16 uF, 10V.

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2017-12-10 Power Outage And Cell Sites

From FB group Bell Telephone… Paul Triplett If the power where I live went out a lot, I would be looking into why so many outages.  I have had good luck, just a few times in several years.  One time we could hear the boom caused by arc-over.  I went down a few blocks and

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2017-12-09 Datacomm Cabinet Falls Off The Wall

From FB Group Bell Telephone… Just like the ones we had, but complete.  Ours had areas where the contractors removed the mushroom panels to make room for the digital cabinets or open racks. We had a contractor install a cabinet with molly bolts into drywall.  It was like that for years with at least a

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2017-12-04 Converting Tube Set to Transistors 

From FB group Vintage Transistor Radios  I’ve considered converting a tube set to transistors.  The problem is getting tube bases that aren’t sharp and breakable glass.  Some old electronics used tube base type plugs for relays and plug-in modules. Then there is the problem of dealing with the higher voltage.  Transistors can handle 300V, but

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