Posts: 16,273
Threads: 566
Joined: Oct 2011
City: Jackson
State, Province, Country: NJ
We in Russia started using PDP-11 when you guys were almost dome with them and even VAXes were on their way out.
So I had my fun with them, repairing (yes, troubleshooting down to a component - no luxury of swapping and tossing boards; sometimes even tracing the microcode and replacing ROM) for which I had to write short assembly programs or even in codes directly right from the key switch panel.
012737
100
177560
Means "set the interrupt bit 6 in the Console Display's Keyboard Command Register".
013737
177562
177566
means "display on the console's screen what you've just typed on the keyboard".
Fun
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Messages In This Thread
RE: Zenith 10-H-571 "Spinet" - by morzh - 02-27-2017, 01:30 PM
Users browsing this thread: 13 Guest(s)
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Recent Posts
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An attempt to remove the Field Coil from a G speaker
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| Gary
I in fact did, on a 38-14, I think, where I had a speaker with the dead coil.
Well...it kinda worked. Kinda, be...morzh — 10:38 PM |
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An attempt to remove the Field Coil from a G speaker
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| Mike, what ever happened to that plan you had to try using a rare earth magnet to magnetize the pole? This looks like a...GarySP — 10:25 PM |
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RCA T62 is playing.....
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| Beautiful set.morzh — 09:07 PM |
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An attempt to remove the Field Coil from a G speaker
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| Well....here it is.
The green stuff. Unfortunately, probably penetrates deep.
I opened the top layer and saw that:
...morzh — 08:58 PM |
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Philco 91 Restore Code ??
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| :clap: :clap: :clap: :clap:
Really nice workmanship!!! Top of the chassis looks great.
Sorry about the long winded e...MrFixr55 — 08:09 PM |
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Philco 40-120C Restoration
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| Thank you for your reply. I will check voltages on the other tubes, look at resistor 23 and cap 25, etc. If all else fai...bluecap — 07:58 PM |
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RCA T62 is playing.....
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| Nice looking set great save. DavidDavid — 07:48 PM |
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Philco 89 indicator light.
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| Hello Jim, I have done several 89s. The trick is to move the drum in or out on it's shaft. You will need to loosen a set...dconant — 07:36 PM |
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An attempt to remove the Field Coil from a G speaker
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| MrFixr
Yes, it is my plan to go with 45rpm spider if I go that far.
No, the pole was not left-handed as I unscrewed ...morzh — 07:14 PM |
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Philco 40-120C Restoration
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| Change the tube. Check the tube's bias network.
Are any other tubes experience the drop or just this?`
Is resistor 23 OK...morzh — 07:09 PM |
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