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Just was admiring at how quietly this scope runs; and then noticed the fan is not connected to anything. Feed-through has no wire connected internally. This will be a long row to hoe.

I recently picked up a project 2467B scope on the famous auction site. The decision was largely based on the pristine external condition of the machine--all panel controls were intact and it appeared

I should add the interference appears only on the 0.5V 1V 2V and 5V positions, the interference or flickering pattern around the dot with the generator on is aggravated most at 0.5V and progressively

Hi, Does this help? https://frank.pocnet.net/sheets/025/2/21A1.pdf Gas-filled tetrode on an IO base, but with two pins missing. I have no idea what it might have been used in, though.... Colin.

FYI There was a discussion about LCD replacements for CRTs on the HPAK list a few weeks ago. Cost was about $100 for an LCD and a VGA board. Required a single logic chip to complete. Unfortunately,

Sorry, left out to let the plastic restorers sit for a while before removing the excess and buffing - the more they penetrate the better and more even the results. Hal

Re the Mother's BtB: I've had very good luck with it on pretty much any surface that is clean and in good shape, from plastic knobs to painted cases to whatever the textured vinyl stuff HP used to

I have reason to suspect that the step generator and the step amplifier appear to be working okay as probing the outputs of the step generator and step amplifier. With the step offset set in the volts

I figured that would be the case in needing elbow grease and grease remover. It reminded me of something I heard years ago that no matter how hard you wipe you cannot wipe a smear of wax from a candle

Kodak dropped their film packs many years ago, and even Fuji stopped manufacturing these a few years ago. I have not found a manufacturer still making the product. Gary -- Gary Robert Bosworth

In my experience, the oil lasts until you decide to put some elbow grease and grease remover to work on the knobs. Many times, the whole reason for the problem is the knobs were washed with a strong

Measured some of the test points in the Z-axis section. 7B, 7C, 7D, 7E, and 7F are all shown here: https://imgur.com/a/eDLAg84 B, C, and D are all way out of spec. E has no variation at all. F looks

Simichrome polish is great!? I started using it on bicycle parts in the late 70's and still use it every once in a while on other things.? Never heard of Shaklee's Basic Shine, but I've been using

Ooh, good info. That tracks, it does seem like there are clicks when I turn the frequency/resolution knob which lag behind the knob detents. I’ll check those. —mark, KF5YDR

(From one of the old radio restorers) My understanding is it is possible (albeit not easy) to polish through the smooth outer surface of bakelite into the rough inner material, so don't get carried

I did a search years ago and just rechecked for the name again Google "cleaning Bakelite" and Simichrome metal polish or Brasso seem to be the choice for Bakelite. Restorers of old radios and

wrote: If the 7L13 is anything like the 7L12, the resolution bandwidth filters contain the unreliable Tek relays. My 7L12 showed no results on some bandwidth settings until I took the relays out and

I served at Ft. Greely in the early '70s. Just a couple years after the damaged nuclear power plant was shut down for the last time. It had no cooling tower, the used, radioactive cooling water was

Hi Tim , I'm in the UK as well and have tried to find a replacement for the Polaroid flat pack and the type 47 roll film used by the C12 camera and the othe C series . I had contact a long time ago

From Tim P (UK) Anyone -ideally UK or Europe - found a substitute for the instant film packs used in the C-series scope cameras? I think the Polaroid # is 667. Yes, I know most everyone is going