TELEFUNKENEL34-TK Power Tubes Quad

Independent shopping perspective
The Korena take
EL34-TK is a quad of high-output pentodes for guitar and hi-fi amplification. TELEFUNKEN developed this Black Diamond Series model with JJ Electronic of Slovakia. Its published sound centers on a tight low end, smooth mids, and harmonically rich overdrive, with examples ranging from vintage warmth and classic-rock crunch to modern high-gain aggression. The traditional octal-base, glass-envelope design remains part of the tube’s format.

Strong match
Who this is for
- Guitar or hi-fi amplification seeking the listed tight lows, smooth mids, and harmonically rich overdrive.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How many EL34-TK tubes are included?
This product is a quad of EL34-TK power tubes.
02What type of tube is the EL34-TK?
It is a high-output pentode.
03What applications are listed?
It is listed for guitar and hi-fi amplifiers.
04What is the stated single-ended Class A output?
The published rating is 11W in single-ended Class A operation.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsPickups & controls
- Control Grid Voltage
- –13.5V
- Pickup Configuration
- SS
1 detailsBody & build
- Type
- High-output pentode
6 detailsConnections & power
- Plate Voltage
- 250V
- Maximum Plate Voltage
- 800V
- Heater Voltage
- 6.3V
- Screen Voltage
- 250V
- Maximum Screen Voltage
- 500V
- Output Power
- 11W (single-ended Class A)
1 detailsSize & weight
- Dimensions
- Approximately 4.4 inch in height and 1.5 inch in diameter
10 detailsOther
- Maximum Screen Dissipation
- 8W
- Amplification Factor
- 11
- Plate Resistance
- 15 kohm
- Maximum Plate Dissipation
- 25W
- Screen Current
- 11 mA
- Transconductance
- 11 mA/V
- Heater Current
- 1.5A
- Plate Current
- 100 mA
- Base
- Octal (8-pin)
- Applications
- Guitar and hi-fi amplifiers



















