For sale a 6F11 screened RF pentode amplifier valve / vacuum tube by Mazda new in original box and recently tested and found fully working at 100% of nominal new emission.

The 6F11 is a pretty rare valve - I could only find one radio design that actually uses it in production, so a bit of a rare one! If you have a treasured old radio that does use a 6F11 - I'd snap this one up right now, as there won't be many more available! 

Other than its rarity on use, this would have been a standard straight IF/RF amplifier valve and it does not seem to have any other specialist features, though it was allocated a CV number (CV1901), indicating some potential government / services use.

A chance here to acquire this rather rare device nowadays, new in original box and guaranteed and tested working. A sensible price though - these old things don't store themselves for 60 odd years and then test themselves!!

6F11 / CV1901

Heater = 6.3V @ 0.2A

Pentode:
Anode / Plate:  250V / 4.4mA / 2.8Mohm
Screen Grid: 100V / 1.35mA
Signal Grid: -1.8V
gm: 2.2ma/V

I offer a full, money back guarantee if you are not completely satisfied with this purchase (see terms). We have been trading since 1927 so bid with confidence. Most of our valves / tubes have been in our own stock room for many, many years. See our EXCELLENT FEEDBACK on quality valves / tubes previously supplied!

We have thousands of valves / tubes in stock - standard and rare; US, UK and European. If you have any particular requirements, please send a message and if we have what you want, we will list it here.

We ship worldwide and are very happy to combine items for multiple postage.

TERMS

GUARANTEE: In case of dissatisfaction, buyer must return item at own expense. We will only refund if you return the EXACT SAME VALVE / TUBE to us that you have purchased, with the heater still intact and passing continuity test. Believe it or not, some evil people have tried to send us back their dud tubes to try and get a full refund for a perfectly good tube we have just sold them! So, refund is a genuine offer, but at our discretion that we have been sent back what we actually sold you in the first place and that you haven't destroyed it through misuse! All returns under guarantee are limited to within 21 days of shipping.

PAYMENT: We accept all usual eBay payment methods. We are happy for you to collect from Bristol by PRIOR APPOINTMENT only, but will require payment in GBP CASH on collection.