Product Description
Here is the famous EL34 Pentode valve as used in many amps usually from 50 watts output and up to 100 watts
Click here for the JJ EL34 Pentode valve data sheet
We test each JJ EL34 Pentode valve on our analogue and digital testers This ensures that we catch not only poor quality new valves but in the case of vintage valves we can detect and reject the worn ones. Here is a summary of the tests
- Heater filament test, short circuit
- Heater filament test: open circuit
- Heater filament test : tolerance check
- Heater cathode insulation :leakage
- Heater cathode insulation : short circuit
- Test for heater current abnormalities
- Amplification factor
- Voltage gain
- Screen grid test
- Dual test for double triodes
- Emission
- Inter electrode leakage
- Inter electrode short circuit
- Flash over ( ac detection , high voltage breakdown)
- Gas Ionisation test
- We also offer a 120 day from purchase warranty on the JJ El34 Pentode valve ( excludes user caused mechanical damage failure and incorrectly set bias current)
Note: Valves use high voltages and these voltages are dangerous. The amp can still retain these high voltages for some time even after being switched off. If you are not sure of fitting them , please seek the services of qualified personnel
