Tung-Sol 6DS5 Vacuum Tube Valve NOS NIB Black Gray Glass They have 4-39 188-5 and

They have 4-39 188-5 and 3-43 188-5 date codes/EIA code

This matched pair of GE 12B4A tubes was tested on our Paul Hart-calibrated TV7/U for shorts

They measured 45

There are light-to-moderate pops and ticks which are not overly-intrusive as this is a fairly-loud album

new in box Mullard UBC41 tube tested to spec on our Paul Hart-calibrated TV7/U

Tung-Sol 6DS5 Vacuum Tube Valve NOS NIB Black Gray Glass They have 4-39 188-5 andThis new old stock, new in box Tung Sol 6DR7 tube 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 "LOWTECHELEC" 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