"CLASSIC" PUSH-PULL ULTRA-LINEAR TUBE OUTPUT

Key Features:

• Designed for push-pull tube output circuits.
• Enclosed (shielded), 4 slot, above chassis Type "X" mounting, both end bells include knockouts for optional above chassis wiring.
• Frequency response 30 Hz. to 30 Khz. at full rated power (+/- 1 db max. - ref. 1 Khz) minimum. Except the 1650E (70 Hz. to 30 Khz. +/- 1 db max. - ref. 1 Khz.)
• Insulated flexible leads 8" min.
• All units (except the 1650G) include 40% screen taps for Ultra-Linear operation (if desired).
• Typical applications - Push-Pull: triode, Ultra-Linear pentode, pentode and tetrode connected audio output. The 1650G does NOT have primary screen taps and will not support "Ultra-Linear" applications.
• For the "ultimate" in Push-Pull output see our line of epoxy potted output transformers.

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	$47.52
1609	10	10,000 ct	100 ma.	4-8-16	2.5	$47.52
1615	15	5,000 ct	100 ma.	4-8-16	3.25	$53.15
1650E	15	8,000 ct	100 ma.	4-8-16	3.5	$78.02
1620	20	6,600 ct	158 ma.	4-8-16	3.5	$54.48
1650F	25	7,600 ct	128 ma.	4-8-16	4	$71.28
1645	30	5,000 ct	128 ma.	4-8-16-70V	4.5	$71.28
1650G	35	6,600 ct	200 ma.	3.5/8/16/250/500	5	$77.62
1650H	40	6,600 ct	200 ma.	4-8-16	6.5	$109.16
1650K	50	3,400 ct	318 ma.	4-8-16	7	$115.03
1650N	60	4,300 ct	318 ma.	4-8-16	8	$102.96
1650P	60	6,600 ct	200 ma.	4-8-16	8	$102.96
1650R	100	5,000 ct	318 ma.	4-8-16	12	$106.92
1650T	120	1,900 ct	403 ma.	4-8-16	14	$124.26
1650W	280	1,900 ct	806 ma.	4-8-16	28	$237.60

Suggested Tube Types:

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:

Cat. No. Dimensions (Inches) A B C D E +/- 1/16" G Slot 1608 2.5 2.75 3.06 2 1.69 .203 x .38 1609 2.5 2.75 3.06 2 1.69 .203 x .38 1615 2.5 3.25 3.06 2 2.19 .203 x .38 1650E 2.5 3.25 3.06 2 2.5 .203 x .38 1620 2.5 3.5 3.06 2 2.44 .203 x .38 1650F 2.5 3.5 3.06 2 2.44 .203 x .38 1645 2.5 3.75 3.06 2 2.69 .203 x .38 1650G 3.13 3.75 3.81 2.5 2.25 .203 x .38 1650H 3.13 4 3.81 2.5 2.69 .203 x .38 1650K 3.13 4 3.81 2.5 2.69 .203 x .38 1650N 3.13 4.25 3.81 2.5 2.94 .203 x .38 1650P 3.13 4.25 3.81 2.5 2.94 .203 x .38 1650R 3.75 4.25 4.56 3 3.06 .203 x .38 1650T 3.75 4.5 4.56 3 3.31 .203 x .38 1650W 4.38 7.5 5.25 3.5 5.88 .203 x .38

Schematic & Hook Up Data (except 1650E, 1645 & 1650G):

Secondary Connections

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.

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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).

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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).

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Schematic & Hook Up Data (1645 only):

• To hook up 4/8/16 ohm secondary loads - see "Secondary Connections" data above.
• To hook up secondary to 70V loads, jumper Blk/Yel wire to Grn wire. Connect load to Blk and White wires.
  

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