General Electric GE 21JS6 21JS6A 23JS6 23JS6GA Vacuum Tube Valve NOS NIB New York Times

General Electric GE 21JS6 21JS6A 23JS6 23JS6GA Vacuum Tube Valve NOS NIB New York TimesThis new old stock, new in box GE 21JS6A 23JS6GA tested to spec on our Paul Hart calibrated TV7 U. WE HAVE SCORES OF THOUSANDS OF VACUUM TUBES. IF IT'S NOT LISTED, WE MAY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE "LOWTECHTWOO" AND OR CALL OR TEXT US AT 202 372 6931 IF YOU DO NOT SEE WHAT YOU NEED OR HAVE ANY QUESTIONS. 1. MOST FORMS OF SHIPPING EXCEPT MEDIA MAIL ARE AUTOMATICALLY INSURED UP TO $100. ETSY PURCHASE PROTECTION COVERS ITEMS UP TO $250

new in box Mullard 6HA5 / EC900 tube tested to spec on our Paul Hart-calibrated TV7/U

Transconductance readings are 44

Tube Two probably has a piece of broken glass in it

steel plates and a top

If you want the Total Package

3 dB (-92 dB is the Maxi-Matcher's noise floor)

I have played them in my Radio Craftsmen RC-2 monoblocks with adapters (not included) and they sound outstanding

This pressing has very light surface noise

There were no shorts and the final three tubes on the right might be a bit gassy

(New EL84s typically test from the mid 20s to mid 60s with transconductance from 7420

5                                                                                                                      Shipping $80

This Sylvania milspec / industrial 5814 / 12AU7 / ECC82 dual triode was tested on our Paul Hart-calibrated TV7/U for shorts