HAMMOND "CLASSIC"
PUSH-PULL ULTRA-LINEAR OUTPUT TRANSFORMERS

1650 Picture

Key Features of Hammond Push-Pull Ultra-Linear Output Transformers:

Please note that as of October 19th, 2009, we have adjusted our prices on all of the Hammond Manufacturing products.  On October 28th, 2008, Hammond adjusted the prices on all of their products for the 4th time since the Radio Daze Catalog 306 was published.  We feel that you will still find our new prices to be very competitive.

Radio
Daze
P/N

Price
Each

Audio
Watts

Primary
Impedance

Max. DC
Per Side
(ma.)

Secondary
Impedance

Wt.
Lbs.
(*)
HX-1608 $47.27 10 8,000 ct 100 4-8-16 2.5
HX-1609 $47.27 10 10,000 ct 100 4-8-16 2.5
HX-1615 $52.87 15 5,000 ct 100 4-8-16 3.25
HX-1650E $77.64 15 8,000 ct 100 4-8-16 3.5
HX-1620 $54.22 20 6,600 ct 158 4-8-16 3.5
HX-1650F $70.92 25 7,600 ct 128 4-8-16 4
HX-1645 $70.92 30 5,000 ct 128 4-8-16-70V 4.5
HX-1650G $77.22 35 6,600 ct 200 3.5/8/16/250/500 5
HX-1650H $108.61 40 6,600 ct 200 4-8-16 6.5
HX-1650K $114.46 50 3,400 ct 318 4-8-16 7
HX-1650N $102.43 60 4,300 ct 318 4-8-16 8
HX-1650P $102.43 60 6,600 ct 200 4-8-16 8
HX-1650R $106.37 100 5,000 ct 318 4-8-16 12
HX-1650T $123.63 120 1,900 ct 403 4-8-16 14
HX-1650W $236.39 280 1,900 ct 806 4-8-16 28 

*  Indicated weights do not include shipping box or packing materials.

Suggested Tube Types:

Radio
Daze
P/N

Audio
Watts

Primary
Impedance

Operation

Tube Types
HX-1608 10 8,000 ct Push-Pull (2 Tubes) 6AQ5, 6V6, 6BQ5, EL84
HX-1609 10 10,000 ct Push-Pull (2 Tubes) 6AQ5, 6V6, 6BQ5, EL84
HX-1615 15 5,000 ct Push-Pull (2 Tubes) 2A3, 6A3, 6AQ5, 6B4G, 6L6, 6V6
HX-1650E 15 8,000 ct Push-Pull (2 Tubes) 6AQ5, 6V6, 6BQ5, EL84, SV83
HX-1620 20 6,600 ct Push-Pull (2 Tubes) 6AQ5, 6L6, 6V6
HX-1650F 25 7,600 ct Push-Pull (2 Tubes) 6L6GC, 6V6, 807, 5881, EL34
HX-1645 30 5,000 ct Push-Pull (2 Tubes) 6L6GC, 6V6, 807, 5881, EL34
HX-1650G 35 6,600 ct Push-Pull (2 Tubes) 6L6GC, 807, 5881, EL34
HX-1650H 40 6,600 ct Push-Pull (2 Tubes) 6L6GC, 807, 5881, EL34
HX-1650K 50 3,400 ct Push-Pull Par. (4 Tubes) 6L6GC, 807, 5881, EL34, 6146B, 6550B
HX-1650N 60 4,300 ct Push-Pull Par. (2 or 4 Tubes) 6L6GC, 807, 5881, EL34, 6146B, 6550B, KT88
HX-1650P 60 6,600 ct Push-Pull (2 Tubes) 6L6GC, 807, 5881, EL34, 6146B, 6550B, KT88
HX-1650R 100 5,000 ct Push-Pull Par. (2 or 4 Tubes) 807, 5881, EL34, 6146B, 6550B, KT88
HX-1650T 120 1,900 ct Push-Pull Par. (4 or 6 Tubes) 6L6GC, 5881, EL34, 6550B, KT88
HX-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. 

A tube manual or tube manufacturer's technical data sheets should be consulted first, before making a decision on a proper output transformer.

Hammond's Mechanical Data:

Radio
Daze
P/N

Dimensions (Inches)

A

B

C

D

E
+/- 1/16"

G
Slot
HX-1608 2.5 2.75 3.06 2 1.69 .203 x .38
HX-1609 2.5 2.75 3.06 2 1.69 .203 x .38
HX-1615 2.5 3.25 3.06 2 2.19 .203 x .38
HX-1650E 2.5 3.25 3.06 2 2.5 .203 x .38
HX-1620 2.5 3.5 3.06 2 2.44 .203 x .38
HX-1650F 2.5 3.5 3.06 2 2.44 .203 x .38
HX-1645 2.5 3.75 3.06 2 2.69 .203x.38
HX-1650G 3.13 3.75 3.81 2.5 2.25 .203x.38
HX-1650H 3.13 4 3.81 2.5 2.69 .203x.38
HX-1650K 3.13 4 3.81 2.5 2.69 .203x.38
HX-1650N 3.13 4.25 3.81 2.5 2.94 .203x.38
HX-1650P 3.13 4.25 3.81 2.5 2.94 .203x.38
HX-1650R 3.75 4.25 4.56 3 3.06 .203x.38
HX-1650T 3.75 4.5 4.56 3 3.31 .203x.38
HX-1650W 4.38 7.5 5.25 3.5 5.88 .203x.38

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

Push-Pull Schematic

Secondary Connections

 Secondary Schematic (4 Ohm)

Secondary Schematic (8 Ohm)

Secondary Schematic (16 Ohm)

NOTE:
Primary & secondary connections above, do NOT include the HX-1650G
The primary of only the HX-1650G does NOT include screen taps (see below).
The HX-1650G has a single secondary winding, tapped at each impedance point.
 

Schematic & Hook Up Data (HX-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 BLK and BLK/GRN wire)

 

Schematic & Hook Up Data (HX-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 BLK and GRN wire)

 

Schematic & Hook Up Data (HX-1645 only):

 

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