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"Classic" - Push-Pull-Ultra Linear-Easy
Wire-Tube Output
Key Features:
Cat. No. |
Audio Watts (RMS) |
Primary Impedance |
Max. DC Per Side |
Secondary Impedance |
Wt. Lbs. |
Price |
PayPal |
1608 |
10 |
8,000 ct |
100 ma. |
4-8-16 |
2.5 |
$125.79 |
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1609 |
10 |
10,000 ct |
100 ma. |
4-8-16 |
2.5 |
$125.79 | |
1615 |
15 |
5,000 ct |
100 ma. |
4-8-16 |
3.25 |
$140.01 | |
1620 |
20 |
6,600 ct |
158 ma. |
4-8-16 |
3.5 |
$154.27 | |
1650F |
25 |
7,600 ct |
128 ma. |
4-8-16 |
4 |
$161.39 | |
1645 |
30 |
5,000 ct |
128 ma. |
4-8-16-70V |
4.5 |
$187.50 | |
1650H |
40 |
6,600 ct |
200 ma. |
4-8-16 |
6.5 |
$187.50 | |
1650K |
50 |
3,400 ct |
318 ma. |
4-8-16 |
7 |
$196.98 | |
1650M | 60 | 1,400 ct/800ct | 318 ma. | 4-8-16 | 7.5 | $267.82 | |
1650N |
60 |
4,300 ct |
318 ma. |
4-8-16 |
8 |
$201.73 | |
1650P |
60 |
6,600 ct |
200 ma. |
4-8-16 |
8 |
$201.73 | |
1650R |
100 |
5,000 ct |
318 ma. |
4-8-16 |
12 |
$225.44 | |
1650T |
120 |
1,900 ct |
403 ma. |
4-8-16 |
14 |
$237.34 | |
1650W |
280 |
1,900 ct |
806 ma. |
4-8-16 |
28 |
$484.87 |
Suggested Tube
Types:
Cat. No. |
Audio Watts (RMS) |
Primary |
Operation |
Tube Types |
1608 |
10 |
8,000 ct |
Push-Pull (2 Tubes) |
6AQ5, 6V6, 6BQ5, EL84, SV83 |
1609 |
10 |
10,000 ct |
Push-Pull (2 Tubes) |
6AQ5, 6V6, 6BQ5, EL84, SV83 |
1615 |
15 |
5,000 ct |
Push-Pull (2 Tubes) |
2A3, 6A3, 6AQ5, 6B4G, 6L6, 6V6 |
1620 |
20 |
6,600 ct |
Push-Pull (2 Tubes) |
6AQ5, 6L6, 6V6 |
1650F |
25 |
7,600 ct |
Push-Pull (2 Tubes) |
6L6GC, 6V6, 807, 5881, EL34 |
1645 |
30 |
5,000 ct |
Push-Pull (2 Tubes) |
6L6GC, 6V6, 807, 5881, EL34 |
1650H |
40 |
6,600 ct |
Push-Pull (2 Tubes) |
6L6GC, 807, 5881, EL34 |
1650K |
50 |
3,400 ct |
Push-Pull Par. (4 Tubes) |
6L6GC, 807, 5881, EL34, 6146B, 6550B |
1650N |
60 |
4,300 ct |
Push-Pull Par. (2 or 4 Tubes) |
6L6GC, 807, 5881, EL34, 6146B, 6550B, KT88 |
1650P |
60 |
6,600 ct |
Push-Pull (2 Tubes) |
6L6GC, 807, 5881, EL34, 6146B, 6550B, KT88 |
1650R |
100 |
5,000 ct |
Push-Pull Par. (2 or 4 Tubes) |
807, 5881, EL34, 6146B, 6550B, KT88 |
1650T |
120 |
1,900 ct |
Push-Pull Par. (4 or 6 Tubes) |
6L6GC, 5881, EL34, 6550B, KT88 |
1650W |
280 |
1,900 ct |
Push-Pull Par. (6 or 8 Tubes) |
6L6GC, 5881, EL34, 6550B,
KT88 |
Notes: The above examples of possible
combinations are to help you narrow down the choices of transformers for your
favorite tube types. How you operate the tubes (push-pull, push-pull parallel,
ultra-linear, class, B+, bias, operating points, etc.) will change optimum plate
to plate load impedance. Only a few of the most popular tubes are shown. As more
tubes become available we will add them to the list.
A tube manual or tube
manufacturer's technical data sheets should be consulted first, before making a
decision on a proper output transformer.
Mechanical Data:
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Schematic & Hook Up Data (All Parts except 1645A,1650E, & 1650G-see below):
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NOTE:
Primary & secondary connections above, do NOT include the
1650G.
The primary of only the 1650G does not include screen taps (see
below).
The 1650G has a single
secondary winding, tapped at each impedance point.
Schematic & Hook Up Data
(1650E only):
To hook up secondary loads simply use Com (Common wire - Blk) and the corresponding wire for the secondary load required (ie...for an 8 Ohm load use the Blk and Blk/Grn wire).
Schematic & Hook Up Data
(1650G only):
To hook up secondary
loads simply use Com (Common wire - Blk) and the corresponding wire for the
secondary load required (ie...for an 8 Ohm load use the Blk and Grn
wire).
Schematic & Hook Up Data (1645 only):
11-11-2022