Radio & Amplifier Service Parts

Assembly and Operation manual for the Heatkit SB-200 Linear Amplifier.  Reprint of the Original manual.

Includes: 

• Specifications
• Introduction
• Circuit Description
• Construction Notes
• Parts List
• Proper Soldering Techniques
• Circuit Board Wiring and Soldering
• Step - By - Step Assembly
• Initial Test
• Final Assembly
• Installation
• Service Information
• Schematic
• Replacement Parts List

SKU: AMSB200

Assembly and Operating Manual for the Heathkit HP-23A AC Power Supply.  Reprint of the original Heathkit manual

Includes: 

• Step by Step Assembly
• Initial Tests
• Operation
• Troubleshooting Chart
• Specifications
• Circuit Description
• Schematic
• Chassis Photograph
• Replacement Parts List

SKU: AMHP23A

• Tolerance:  20%
• Size: The cap is 0.725 diameter and 0.835 from threaded end to threaded end.
• Heavy Duty replacement for 21-165 used in Heathkit SB220 and SB221

MFR: High Energy
SKU: 581000-7

1N3996A - Zener Diode, 10w 5.1v MFR: NJS

Used in Heathkit SB220 and SB221

Pi wound multi winding - 4 sections, Broadband 1.7-30 mhz
This part will replace the 45-4 in most Heathkit Amplifiers.
Size:  1.15" Long x 0.5" Wide

MFR: Wilco
SKU: 4021162

Possible replacement for Heathkit SB220, SB221

New Old Stock
MFR: KEST
SKU: KRUP110

Coil Resistance: 10kohm
Contact Voltage AC Nom: 240 V
External Width: 37.29 mm
Nom Operating Power: 1.2 W
Coil Current: 11.5 mA
External Height: 34.93 mm
Contact Current Max:10 A 
External Depth: 48.8 mm
Coil Voltage VDC Nom: 110 V

Can be used as a replacement in the Heathkit SB200-SB201 Linear Amplifiers

New Old Stock * No longer available for export
MFR: Potter & Brumfield

Size: 1.9" Long x 1.1" Wide x 1.3" High

Possible replacement for the Heathkit SB220-221 

New Old Stock * No longer available for export
MFR: Cornell Dubilier Electronics
SKU: 303D10

• Size: 1.75" Long x 1" Wide x 1.2" High
• Can be used as a replacement in the Heathkit SB220-SB221 Linear Amplifiers

Made in Japan
SKU: 3PDT10A110V