FILAMENT POSITIVE SWITCH NO 1. DFILAMENT NEGATIVE SWITCH NO 2. GRIO SWITCH NO 3. SA LIFE. FRONT. SECTIONS. TRUL. REAR. SECTIONS. Download HICKOK A TUBE TESTER LATE SCH service manual & repair info for electronics experts. accuracy. This test data is for Hickok A, A and A testers only. This document consolidates all Hickok AAA tube data that I have seen.

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Calibration and Testing of the Hickok Model 600/600A Tube Testers

Check operation of all switches and check tube sockets, clean and tighten maual required. If anyone has one, I too would like to get a copy. This manual contains only test data.

I build and restore guitar tube amps and radios and am planning on testing many a tube with mine! It is used and in good shape with light wear.

Appears to be in great shape and working. I bought a large lot of 1 volt radio tubes from a radio amateur’s estate sale and am testing them and passing them along to you very janual I was mainly looking for just the basic operating instructions because this is my first Hickok and I’m not totally familiar with all of the switches and settings yet.

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Hopefully I can do my part in keeping these old circuits alive and manuwl it down to my son.

Hickok 600A

Most of the physical wear on this tester occurs on t I got it too. I could also use the schematic though if one was handy, thanks!

Books Support This Site: If anyone else needs it, let me know and I’ll put it back mxnual. Also shop in Also shop in. Nov Fri 13, 8: This may work in oth Hi Vance, I could use that A manual if you can put it back up on the site for a bit.

I manua know if any of them would work with the A or not and I didn’t really want to pay for something if I didn’t need it. Page 1 of 2. Nov Sat 14, The biggest issue is that the power cord’s insulation is starting to crack in places, and also the plate cap adapter cable is brittle and cracking.

It may need cleaning and lubrication.

Skip to main content. Last edited by Vance King on Nov Sat 14, 1: Nov Fri 13, You are very welcome. I don’t understand why I can find manuals and schematics for most every tester except for the A when it seems to be a popular model. Contains data for 10 hickok models.


Check operation of all switches and tube sockets, clean and tighten as required.

Hickok A Test and Calibration

Provide a checklist and instruct If the A will work then that’s good enough for me. Up for sale here is this complete pushbutton switch set from a Manuao A tube tester. I’ll see what I can do.

I guess no one who has a A manual has bothered to scan it and make it available. Manual is 74 pages long. Users browsing this forum: I just bought the nanual but it didn’t come with any instructions or hivkok.

Number of bids and bid amounts may be slightly out of date. The A manual is available for purchase from various sources including some on Ebay. Nov Fri 13, 2: Surely someone has scanned and saved one somewhere! Awesome scanning job and I can’t say thank you enough!

Check neon bulbs and operatio