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Dynacord DDL 12 digital effects repair

Mark repairs a 1983 vintage Digital Delay Line effects unit. It powers up, but has no output, and as usual, has plenty of problems.

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HH Digital Effects Unit Repaired!
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HH Digital Effects Unit Repaired!

PEAVEY 4000W Amp Repair (CS4080HZ)
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PEAVEY 4000W Amp Repair (CS4080HZ)

ELKA SYNTHEX - A 1980's Legend Gets Fixed!
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ELKA SYNTHEX - A 1980's Legend Gets Fixed!

The 5 Channel Basket Case: Parasound's A52
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The 5 Channel Basket Case: Parasound's A52

Integrated SSDs Should Be Illegal, But Why Would They Care!
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Integrated SSDs Should Be Illegal, But Why Would They Care!

Guitar Effects Pedal Repair (NOVA System)
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Guitar Effects Pedal Repair (NOVA System)

How Just One Mistake Destroyed The World's Greatest Engine Company
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How Just One Mistake Destroyed The World's Greatest Engine Company

Audiophile Power Regenerator Repair (PS Audio Power Plant 300)
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Audiophile Power Regenerator Repair (PS Audio Power Plant 300)

1982 Boom Box Repair (Telefunken CR100)
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1982 Boom Box Repair (Telefunken CR100)

Inside a 3000W Water-Cooled Power Supply (with GaN & SiC)
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Inside a 3000W Water-Cooled Power Supply (with GaN & SiC)

Mend It Mark The £25,000 Pre Amp that went Wrong Tom Evans Mastergroove SR mkIII
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Mend It Mark The £25,000 Pre Amp that went Wrong Tom Evans Mastergroove SR mkIII

The HORRORS of German Tank Destroyer Crews
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The HORRORS of German Tank Destroyer Crews

Pioneer VSX-909  Blown Output Repair
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Pioneer VSX-909 Blown Output Repair

SONY Giga Juke, Codename 'PROBLEMBOX'
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SONY Giga Juke, Codename 'PROBLEMBOX'

I EXPOSED BUGATTI'S SERVICE & REPAIR COST'S
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I EXPOSED BUGATTI'S SERVICE & REPAIR COST'S

S01 - Episode 09. Mend It Mark - The Electronic Repairer & YouTuber
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S01 - Episode 09. Mend It Mark - The Electronic Repairer & YouTuber

The Ten-Engine Titan: Inside the B-36 Peacemaker, The Cold War’s Largest Bomber
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The Ten-Engine Titan: Inside the B-36 Peacemaker, The Cold War’s Largest Bomber

2000W Active Speaker Repair - No Bass - ALTO TS310
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2000W Active Speaker Repair - No Bass - ALTO TS310

Mastergroove Repair by Mend It Mark Because Repair Information Should Be Free
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Mastergroove Repair by Mend It Mark Because Repair Information Should Be Free

What 1000+ Repairs Taught Me About Recapping Vintage Receivers
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What 1000+ Repairs Taught Me About Recapping Vintage Receivers

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