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Heath Heathkit W4-AM, Assembling And Using

The Heath Heathkit W4-AM is an iconic amateur radio kit loved by enthusiasts worldwide. Assembling and using this classic radio is made easy with the comprehensive manual available for free download from manualshive.com. Dive into the world of radio communication with this timeless piece of technology.

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Summary of Contents for Heathkit W4-AM

Page 1: ...PRICE 1 00 WILLIAMSON TYPE AMPLIFIER MODEL W4 AM...

Page 2: ......

Page 3: ...HEATHKIT WILLIAMSON TYPE AMPLIFIER MODEL W4 AM Phase Shift...

Page 4: ......

Page 5: ...distortion measurements Krohn Hite model 440 A generator inherent distortion less than 0 1 Hewlett Packard 330 B distortion analyzer For inter modulation distortion measurements Measurements Corporati...

Page 6: ...u have or expect to have more than 300 00 to spend for a loud speaker system no significant im provement would be audible if the W 4AM were replaced with any other commercially available power amplifi...

Page 7: ...in check ing the contents of your kit CAUTION We strongly urge that you follow the wiring and parts layout shown in this manual The position of leads and parts is quite critical in the instrument and...

Page 8: ......

Page 9: ...described quite completely in the wiring instructions On most resistors a gold or silver band will be found in addition to the three colors called out This fourth color may be disregarded since it ind...

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Page 12: ...oubt use the 8 terminal temporarily Plug the line cord of the W 4AM amplifier into an outlet delivering 105 125 volt 50 60 cycle AC power DO NOT CONNECT TO A DC DIRECT CURRENT OUTLET such as may be fo...

Page 13: ...ng connections Often having a friend check the wiring will reveal a mistake consistently overlooked 2 Check the tubes Most radio service shops will do this at no charge or for a nominal fee 3 If possi...

Page 14: ...Motor boating is a term used to describe a low frequency 2 to 5 cps oscillation of an amplifier system It is generally caused by inadequate amplifier loading at low frequencies For example a speaker w...

Page 15: ...is manual We suggest a review of current issues of High Fidelity and Music at Home These magazines carry specific sections on installation This type of information also appears fre quently in other pe...

Page 16: ...fied in design will not be accepted for repair Instruments showing evidence of acid core solder or paste fluxes will be returned not repaired The Heath Company is willing to offer its full cooperation...

Page 17: ...WARRANTY i li present may...

Page 18: ...ocket 434 20 1 AC power socket 434 58 6 Octal tpbe socket 436 4 2 Phone jack 438 4 1 Phono plug 421 2 1 Fuse A423 2 1 Fuse holder short PART PARTS DESCRIPTION No Per Kit Terminal Strips Wafer 431 1 4...

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