VERY NICE HICKOK 534 MUTUAL CONDUCTANCE TUBE TESTER - SERVICED AND CALIBRATED

Description

Hickok 534 tube tester description:
The Hickok model 534 is a 532 with the addition of a built-in VOM.
Many of the parts in the VOM needed to be replaced, see attached images. In the end, it all works except the capacitance measurement part. The tester does not match the schematic exactly, and deciphering that part of the circuit was more trouble than it was worth.
The tube tester itself works fine and is in calibration. I verified the output current accuracy and the applied test voltages. It tests a knowns 6L6 within 10% of the value my other Hickok's see. I also tested a 6SQ7 to test the Diode function switch and an 0Z4 to test that switch function.
Exception: The 0Z4 test is not quite right, but works fine if you set the English meter pot to 55 rather than the specified 75. If you do that, my 0Z4 tests the same as in our other three Hickok's. This only affects that one tube type, as it has its own Test button.
All four internal tubes (83, 5Y3 in the tube tester section and the two 6H6s in the VOM) test good. The line cord was replaced with a 3 wire grounding cord to protect the operator, who is touching the metal panel. The leakage current is just fine without the ground, but grounded is better.
The tester comes with the original manual including schematic, VOM test leads, tube adapters and a grid/plate cap lead.
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About Us:
The California Historical Radio Society (CHRS) is a not for profit corporation (IRC 501.(c).(3)) founded in 1974 to promote the restoration, education and preservation of early radio and broadcasting.
We are located at 2152 Central Avenue in Alameda, California (San Francisco Bay Area) CHRS owns and operates the largest radio education and museum facility on the west coast.
Please visit us online at
californiahistoricalradio.com
Shipping
We ship Monday through Friday. Shipping and Handling charge represent the actual cost of shipping, packing material, and labor only. A .00 handling fee is added to each order to cover out of pocket material costs.
All purchases will be well packed for safe delivery to your location. A larger box and additional packaging when appropriate, add to the shipping weight.
In an effort to reduce waste and save you money, we re-use good quality packing material when possible and your shipping cost will reflect any savings.
Insurance can also be purchased by the winning bidder at their request. Please also note that shipping can cause things to shift inside even the best package and could affect the items. We work hard to maintain a 100% seller feedback so bid with confidence.
Many of these items are rare, very old, vintage electronic antiques so everything we sell is offered "as-is" for parts or display, but not operation; except where noted.
Our only warranty is fitness for particular purpose of parts or display, and merchantability as parts or display items.
Combined shipping is available but depends on the size & weight of any other items. We will always try to save you money on shipping if possible. Note that all items shipped UPS are automatically insured up to 0.  We use UPS primarily for shipping larger items because they have demonstrated superior handling abilities compared to USPS.  However, if you live in an area such as Alaska, Hawaii, or foreign location where the UPS charges are much higher, contact us for a USPS shipping quote to save you money.  If you have concerns about having adequate insurance on your purchase, please contact us prior to completing checkout. Non-USA International Customers: Many countries have a Value Added Sales Tax VAT, which is charged when an item crosses into their border. VAT is charged in addition to applicable duties. It's the buyer's responsibility to know how much tax and duties will be charged.
We will not declare your package as a gift.
Free local pick up in Redwood City or Alameda, CA is possible with prior arrangements.
Every effort has been made to properly describe all our items so you can have a pleasant and worry free experience. All of our listed items are excess to the parts or display needs of our historical radio museum and education center and/or donations from members and the public to help us maintain our operations and facility.
If you have any questions or concerns please let us know.
We pride myself on great packing and prompt shipping.
Terms of Sale
Payment is expected within 3 days of auction end unless prior arrangements are made.
We reserve the right to decline PayPal payment with unverified account or unconfirmed address. Winning bidder must contact seller within 3 days of auction close to make payment arrangements. If payment has not been received after 7 days of auction close, item will be re-listed and eBay notified of non-payment unless an extension of payment has been arranged with the buyer.
Return Policy:
No returns accepted on this item.
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