Hoffman 6AF4 6AF4A Vacuum Tube Valve NOS NIB Dirigent Deutsche I have played them in

I have played them in my Radio Craftsmen RC-2 monoblocks and they are dead quiet when the CD player is paused and have excellent frequency response

THE PRODUCT DEVELOPMENT AND IMPROVEMENT CYCLE IS OVER

The GM-LABELED ones all have 312 Sylvania EIA codes

new in box RCA Number 37 tube tested to spec on our Paul Hart-calibrated TV7/U

These tubes have mediocre-to-fair and nice flashing

Hoffman 6AF4 6AF4A Vacuum Tube Valve NOS NIB Dirigent Deutsche I have played them inThis Hoffman 6AF4A tested to spec on our Hickok 800. BECAUSE OF THE BIZARRE, INTRUSIVE, CRUEL AND DRACONIAN GERMAN PACKAGING REGULATIONS AND THE SEVERE FINES AND PRIVACY INTRUSIONS ASSOCIATED WITH THEM WE NO LONGER SHIP TO GERMAN ADDRESSES. WE WILL HAPPILY SEND YOUR PACKAGE TO A NEIGHBORING COUNTRY OR MAKE SUITABLE ARRANGEMENTS. IN 2021 WE PURCHASED 150,000 VACUUM TUBES. IF IT'S NOT LISTED, WE PROBABLY HAVE IT. PLEASE ALSO SEE OUT ETSY SISTER SITE