This page is: "5. Paramour: Stock Output Transformer, Stock
Choke, AVVT 2A3 tubes,
Left Amp, 10% distortion curves."
This involves working with high voltages, attempt
these changes at your own risk.
Many people refer to magnetics as "iron" no
matter what the magnetics are made of.
1. Paramour: Top Level Link.
10% Distortion Tables vs Frequency. Output impedance vs Frequency.
2. Paramour:
Stock Output Transformer, Stock Choke, AVVT 2A3 M tubes,
Right Amp, 10% distortion pictures, No distortion curves.
This link opens a new window so you can compare it
to other pages.
3. Paramour: Stock
Output Transformer, EXO-04 Choke, AVVT 2A3
M tubes,
Right Amp, 10% distortion pictures, distortion curves.
4. Paramour: Stock Output
Transformer, Stock Choke,
Sino 2A3 tubes,
Left Amp, 10% distortion pictures, distortion curves and pictures.
5. Paramour: Stock
Output Transformer, Stock Choke,
AVVT 2A3 tubes,
Left Amp, 10% distortion pictures, distortion curves.
6. Paramour:
EXO-45-VS Output Transformer, Stock Choke, AVVT 2A3 tubes,
Left Amp, 10% distortion pictures, distortion curves,
50Hz 100 Hz distortion curve comparison.
7. Paramour:
EXO-45-VS Output Transformer, EXO-04 Choke, AVVT 2A3 tubes
Right Amp, 10% distortion pictures, distortion curves.
Stock Output Transformer
Stock Plate Choke
AVVT 2A3 M tubes.
Pictures taken at 10% distortion into 8.45 ohms (Left
Amplifier).
An old HP 334 was used to measure the distortion.
Added 04/28/01 Updated 04/28/01
Note: Sino tube shown
This is the left channel with the stock Paramour magnetics with an AVVT
2A3 at 10 kHz, 10 usec/ div, 10% distortion. (6.1 V rms)
This is the left channel with the stock Paramour magnetics with an AVVT
2A3 at 1 kHz, 100 usec/ div, 10% distortion. (6.10 V rms)
This is the left channel with the stock Paramour magnetics with an AVVT
2A3 at 100 Hz, 1 msec/ div, 10% distortion. (5.13 V rms)
This is the left channel with the stock Paramour magnetics with an AVVT
2A3 at 50 Hz, 2 msec/ div, 10% distortion. (3.81 V rms)
This is the left channel with the stock Paramour magnetics with an AVVT
2A3 at 20 Hz, 5 msec/ div, 10% distortion. (1.40 V rms)
Notes for Chart 3:
1. I took these distortion measurements with a Heathkit Sinewave generator
that was sending 1.0 % distortion at 100 Hz and 1.5 % distortion at 50
Hz to the Paramour before the Paramour added any distortion of its own.
2. I could manually null the HP334A I was using better than the autonull
would work.
Chart 3: Left Paramour with stock iron: Distortion vs Output Power into
8.45 ohms on 8 ohm tap with AVVT 2A3 output tube. (Left Amplifier)
