Re: 5xx 'Scopes

Paul Amaranth

Here's a couple on the Detroit Craigslist:

No affiliation, yada yada.


On Tue, Aug 13, 2019 at 12:05:02AM +0000, John Griessen wrote:
On 8/12/19 6:07 PM, Morris Odell wrote:
The ultimate in heating is to compare the standard frequency outputs of two HP 524 series vacuum tube counters in a 555. There are almost 300 tubes glowing at the same time and four fans circulating the warmth.

It's a cold winter in the southern end of Australia so I'm tempted to try it again but electricity is getting very expensive down here..
If you go solar PV panels, it would be winter daytime heating and entertaining at the same time :-)
Paul Amaranth, GCIH | Manchester MI, USA
Aurora Group of Michigan, LLC | Security, Systems & Software
paul@... | Unix & Windows

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