Repair - Revision history

Gordonp at 17:56, 12 August 2020

2020-08-12T17:56:22Z

2020-08-12T17:56:00Z

2020-07-06T17:59:32Z

← Older revision		Revision as of 17:59, 6 July 2020
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	[[Power Supply & Lower Compartment]]		[[Power Supply & Lower Compartment]]

			[[Tuning & Loading Meter Circuit]]

2020-06-01T22:03:28Z

← Older revision		Revision as of 22:03, 1 June 2020
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	[[File:30s1_decrepit_T202.jpg\|500px\|thumb\|center\|Filament transfomer T202 had broken leads!]]		[[File:30s1_decrepit_T202.jpg\|500px\|thumb\|center\|Filament transfomer T202 had broken leads!]]

			[[Dealing with the Overheated and Cracked R232]]

			[[Dealing with the RF Output]]

			[[BIAS Transformer T203, and Associated Circuitry]]

			[[Screen Supply Overhaul]]

			[[12V Safety and Control]]

			[[Primary AC Wiring]]

			[[Dials]]

			[[Power Supply & Lower Compartment]]

2020-06-01T21:59:19Z

← Older revision		Revision as of 21:59, 1 June 2020
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	[[File:30s1_hacked_C211.jpg\|500px\|thumb\|center\|Questionable C211 (12VDC filtering)]]		[[File:30s1_hacked_C211.jpg\|500px\|thumb\|center\|Questionable C211 (12VDC filtering)]]

			[[File:30s1_decrepit_T202.jpg\|500px\|thumb\|center\|Filament transfomer T202 had broken leads!]]

2020-05-23T17:59:35Z

← Older revision		Revision as of 17:59, 23 May 2020
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	[[File:Burned_bias_transformer_t203.jpg\|500px\|thumb\|center\|Burned and bubbled T203 Bias Transformer. Bent-over and shorted Bias diodes CR207 & CR208, along with step-start diode CR205]]		[[File:Burned_bias_transformer_t203.jpg\|500px\|thumb\|center\|Burned and bubbled T203 Bias Transformer. Bent-over and shorted Bias diodes CR207 & CR208, along with step-start diode CR205]]
	[[File:bent_bruised_shorted_r218.jpg\|500px\|thumb\|center\|Bent, bruised and shorted R218 (bias switching between CW and SSB)]]		[[File:bent_bruised_shorted_r218.jpg\|500px\|thumb\|center\|Bent, bruised and shorted R218 (bias switching between CW and SSB)]]

			[[File:30s1_hacked_C211.jpg\|500px\|thumb\|center\|Questionable C211 (12VDC filtering)]]

2020-05-23T17:54:51Z

← Older revision		Revision as of 17:54, 23 May 2020
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	Here's a visual summary:		Here's a visual summary:
	[[File:Burned_bias_transformer_t203.jpg\|500px\|thumb\|center\|Burned and bubbled T203 Bias Transformer]]		[[File:Burned_bias_transformer_t203.jpg\|500px\|thumb\|center\|Burned and bubbled T203 Bias Transformer. Bent-over and shorted Bias diodes CR207 & CR208, along with step-start diode CR205]]
	[[File:bent_bruised_shorted_r218.jpg\|500px\|thumb\|center\|Bent, bruised and shorted R218 (bias switching between CW and SSB)]]		[[File:bent_bruised_shorted_r218.jpg\|500px\|thumb\|center\|Bent, bruised and shorted R218 (bias switching between CW and SSB)]]

2020-05-23T17:51:48Z

← Older revision		Revision as of 17:51, 23 May 2020
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	Here's a visual summary:		Here's a visual summary:
	[[File:Burned_bias_transformer_t203.jpg\|500px\|thumb\|center]]		[[File:Burned_bias_transformer_t203.jpg\|500px\|thumb\|center\|Burned and bubbled T203 Bias Transformer]]
			[[File:bent_bruised_shorted_r218.jpg\|500px\|thumb\|center\|Bent, bruised and shorted R218 (bias switching between CW and SSB)]]

2020-05-21T22:12:07Z

← Older revision		Revision as of 22:12, 21 May 2020
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	I printed the schematics, figured out how to remove the Relay Shelf, and began:		I printed the schematics, figured out how to remove the Relay Shelf, and began:
	[[File:30s1_relayshelf_halfout_selfie.jpg\|500px\|thumb\|center]]		[[File:30s1_relayshelf_halfout_selfie.jpg\|500px\|thumb\|center\|Relay Shelf half-out,
			probably far enough to work on]]
	* Bias Transformer T203 was utterly toasted... burned and bubbled. Fortunately Peter Dahl / Hammond offer a top-quality replacement - Whew! Nearby components and the wiring-harness appeared miraculously undamaged!		* Bias Transformer T203 was utterly toasted... burned and bubbled. Fortunately Peter Dahl / Hammond offer a top-quality replacement - Whew! Nearby components and the wiring-harness appeared miraculously undamaged!
	* Bias rectifiers had been changed to silicon diodes, mounted on a terminal-strip. However, the terminal-strip was bent over, shorting at least one (perhaps two) leads to the chassis.		* Bias rectifiers had been changed to silicon diodes, mounted on a terminal-strip. However, the terminal-strip was bent over, shorting at least one (perhaps two) leads to the chassis.

2020-05-21T22:08:53Z

← Older revision		Revision as of 22:08, 21 May 2020
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	Here's a visual summary:		Here's a visual summary:
			[[File:Burned_bias_transformer_t203.jpg\|500px\|thumb\|center]]

← Older revision		Revision as of 17:59, 23 May 2020
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	[[File:Burned_bias_transformer_t203.jpg\|500px\|thumb\|center\|Burned and bubbled T203 Bias Transformer. Bent-over and shorted Bias diodes CR207 & CR208, along with step-start diode CR205]]		[[File:Burned_bias_transformer_t203.jpg\|500px\|thumb\|center\|Burned and bubbled T203 Bias Transformer. Bent-over and shorted Bias diodes CR207 & CR208, along with step-start diode CR205]]
	[[File:bent_bruised_shorted_r218.jpg\|500px\|thumb\|center\|Bent, bruised and shorted R218 (bias switching between CW and SSB)]]		[[File:bent_bruised_shorted_r218.jpg\|500px\|thumb\|center\|Bent, bruised and shorted R218 (bias switching between CW and SSB)]]

			[[File:30s1_hacked_C211.jpg\|500px\|thumb\|center\|Questionable C211 (12VDC filtering)]]