Twin Triode Switch model 4506 (Octal 8-pin) for Hickok tube testers

Description

Twin Triode Switch model
4506 (Octal 8-pin)
for Hickok tube testers
Does this switch change my tube tester settings or its measuring characteristics at all?
Absolutely not, this switch does not change any of your tube tester settings nor it would alter your tube tester’s measuring characteristics, it just simplifies the test procedures.
Why should I use a Twin Triode Switch on my Hickok?
You may have noticed that most popular Octal 8-pin basing (8BD) twin triodes use setting 4506-x on triode #1 and 1203-x on triode #2 (where ‘x’ is the last digit setting which does not affect this switch), it is a lot of fiddle around and causes tube tester mechanical wear.  This gadget will simplify your work for fast, accurate and consistent test results while minimizing tube tester mechanical wear, making twin triode test nice and easy!
How do I use it on my Hickok?
Take a 6SN7 dual triode as an example, just do the tube tester setting as you normally would for Triode #1 eg. 4506-2 and insert the Twin Triode Switch on the Octal socket.  Carefully insert the 6SN7 on the Twin Triode Switch Octal socket (8-pin), allow the tube to warm up and do the Line Adjust as you normally would, perform the Gm or Good/Bad test as usual.  On the Twin Triode Switch toggle switch position #1 is your Triode #1 and toggle switch position #2 is your Triode #2.
You can now test your dual section triodes and verify how closely they match at the flick of the toggle switch, no messing around with the tube tester settings over and over again.
Which Hickok models would this switch work for?
This switch will work for Hickok 6000/A/B, 6005, 539A/B/C, TV-7A/B/C/D, 533/A, 534, 536, 538,
547A, 600/A, 605A, 750, 800/A/K, TV-2, TV-3, TV-10, KS-15560-L1, KS-15750-L1/L2, 1575 or a Stark 9-66/A (Canadian Hickok) on Octal (8-pin) basing twin triodes.
Refer to separate listings on eBay to choose
Model 7608A/B
Twin Triode Switch for Noval (9-pin) basing twin triodes.
You may want to get a set of the Twin Triode Switches (Model 7608A & Model 4506) or (Model 7608B & Model 4506) to benefit from combine shipping.
Every switch is carefully handmade and fully tested.  Ceramic tube socket, 304 SS steel nuts and bolts,
USA
ferrite beads
to suppress or filter the amount of high frequency electromagnetic interference (EMI) noise
if any.
Shipping from Hong Kong is very affordable worldwide (for example USD5 to
USA
by air).  I charge actual postage with no handling fees, happy to combine shipping.  Happy vacuum tube testing!
Warning – do not attempt to use this switch to test a vacuum tube which requires tube tester setting other than 4506 !
Popular twin triodes with tube tester setting 4506x are as follows:- 6AS7, 6BL7, 6BX7, 6DN7, 6EM7, 6SL7, 6SN7, 12SL7, 12SN7, 5691, 5692, 5998, 6080, 6082, 6336, 7236.