BIRD Digital RF

Rare Telefunken ECC803S / 12AX7 tubes. The ECC803S tubes are very low noise premium quality tubes, made with the old-style Telefunken German precision. 

New old stock * No longer available for export.
MFR: Telefunken
Made in Germany
SKU: ECC803S-TELE

Power pentode tube designed to be used in audio amplifiers.
Made in Great Britain
Manufactured by Mullard, branded RCA
New old stock * No longer available for export.
SKU: EL34-RCA

The 6L6WGB / 5881 is the electrical equivalent to types 6L6 and 6L6GC except that the plate and screen dissipation ratings have been increased approximately 20 percent. It embodies a complete mechanical redesign which results in greater resistance to shock and vibration. The use of treated grids and anode greatly increases its overload capabilities and thereby provides desirable improvement in continuity of service. The addition of a low-loss barrier type base will provide obvious advantages in certain applications.

Used, Excellent condition * No longer available for export
MFR: GE, Canada
SKU: 5881-GE-P

The 6L6GB is a beam pentode designed primarily for use in audio-frequency power amplifier applications.  The tube features high power sensitivity, high efficiency, and low third and higher-order harmonic distortion.

New Old Stock * No longer available for export
MFR: RCA
SKU: 6L6GB-BP-RCA

The 6L6WGB / 5881 is the electrical equivalent to types 6L6 and 6L6GC except that the plate and screen dissipation ratings have been increased approximately 20 percent. It embodies a complete mechanical redesign which results in greater resistance to shock and vibration. The use of treated grids and anode greatly increases its overload capabilities and thereby provides desirable improvement in continuity of service. The addition of a low-loss barrier type base will provide obvious advantages in certain applications.

New old stock * No longer available for export
MFR: Tung-Sol
SKU:6L6WGB-TS-JAN

High gain pentode for use in A.F. amplifiers The EF37A has an anti-microphonic construction and its heater is designed to reduce hum.

Used * Tested Like New * No longer available for export
MFR: Mullard
Made in Great Britain
SKU: EF37A-MUL

The 6L6GB is a beam pentode designed primarily for use in audio-frequency power amplifier applications
where relatively large power outputs are required. 

New Old Stock
MFR: Tung-Sol
SKU: 6L6GB-TS

The 6L6G is designed with high power sensitivity and high efficiency for service in the output stages of AC receivers.
They are capable of delivering an output at all power levels with a very low percentage of harmonic distortion.

New Old Stock * New In Box * No longer available for export
MFR: RCA
SKU: 6L6G-DG-RCA

Power pentode tube designed to be used in audio amplifiers. Most of these tubes are missing their original packaging.
Made in Japan
New old stock * No longer available for export.
SKU: EL34-CEI-JP