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4DVD-set-Book-FIX-REPAIR-TUBE-GUITAR-AMP-valve-amplifier-for-Fender-EL84-6L6-P9
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Details about  4DVD set+Book FIX REPAIR TUBE GUITAR AMP valve amplifier for Fender EL84 6L6 P9

4DVD set+Book FIX REPAIR TUBE GUITAR AMP valve amplifier for Fender EL84 6L6 P9

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AU $119.00
Approximately £64.70(including postage)
 
 
 
 
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Postage:
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Item location:
Canning Vale, Western Australia, Australia
 
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eBay item number:
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Last updated on  23 May, 2014 08:25:43 BST  View all revisions

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New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is ... Read moreabout the condition
 

Tube Amp DVDs DIY valve resources

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Program 9: 4 DVD SET + Book, practical DIY video workshop: How to Troubleshoot & Repair Tube Guitar Amplifiers

 


Two vintage amps (from the 60's) were used as examples, a Fender Bandmaster head with 6L6GC power tubes and tremolo, and Teisco Checkmate 20 combo with EL84 output tubes, reverb and tremolo effects. The principles and methods apply to all valve (tube) guitar and bass amplifiers, even to hi-fi amps, so using the knowledge gained here you should be able to repair any tube amp.

·        4 DVD set + full colour A4 size accompanying book

·        Duration: approx. 4.5 hours

·        Produced and recorded in Australia

·        English, color, no subtitles, region-free, PAL standard


FREE laminated safety sign included

FULL-COLOR REFERENCE MANUAL - this unique program comes with an accompanying full color A4 sized book, a great reference book with schematics, close-up photos of important details and photos of the flip-charts used in the program.


Some of the topics covered:

*  Safety rules

*  Fault symptoms and suggested solutions:  no sound, amplifier keeps blowing the mains fuse, abnormally high current draw, hum & buzz, motorboating, radio interference, output transformer problems

*    4 quick fault location methods: comparison, isolation/separation, substitution, bridging & bypassing

*    primary and secondary faults

*    replacing the old 2-pin power cord with a 3-pin grounded cable and modifying the mains side of old amplifiers to make them legal

*    converting amps designed to operate on 220Vac for operation on 240 Vac mains

*   discharging capacitors

*    measuring & replacing electrolytic filter capacitors

*    testing & replacing leaky coupling and bypass capacitors

*   testing & measuring filter chokes

*    testing semiconductor diodes

*   measuring DC voltages (heater voltage, bias voltage, plate voltages, screen voltage, cathode voltages)

*    measuring DC current through power tubes (checking bias)

*    cold checks (with power off)

*   hot checks (with power on)

*   3 types of diagrams: block diagrams, circuit diagrams (schematics), wiring diagrams

*    determining the windings of an unknown power transformer

*    quick testing of power & output transformers based on magnetizing current

*    modifying the power stage so bias current can be measured

*    determining normal power draw of an amp

*    measuring the actual power draw of an amp

*    measuring amps maximum output power

*    finding & removing (or changing) negative feedback

*    quick speaker checks plus measuring their resistance and impedance

*  We also give you designs for a few simple yet valuable measurement tools that you can make yourself:

·        Bob's Black Box, a simple but very effective power meter (watt meter)

·        8-pin and 9-pin tube test jig (you unplug a tube, plug this jig into the tube socket, and then plug the tube into the socket in the jig). Now you have access to all the pins so you can measure all DC voltages and AC signals!

·        Capacitor discharge tool

·        Capacitive signal measurement tool (to remove DC current from AC signal)


IF A PICTURE IS WORTH A THOUSAND WORDS, THIS VIDEO IS WORTH A MILLION! Most of the information revealed in this video program is not available in a visual format anywhere else - finally you can see how it's done and hear the commentary while each operation is being performed. Reading about something is one thing, and seeing an expert do it in front of you (and explain how and why) is something completely different!


PAYMENT METHODS ACCEPTED:

Australian buyers: PayPal, postal money order, bank transfer
International buyers: PayPal


CLAIM IT ON TAX AND GET SOME OF YOUR MONEY BACK FROM THE GOVERNMENT: A few people bought this product and one or more of our DVD programs, so they can start an amp repair or an amplifier building business. In that case the expense could be tax-deductible - check with your accountant. We are happy to issue you a tax invoice upon request so you have a required record for your tax return.


NO RETURNS! Due to the nature of this product, no returns will be accepted. In an unlikely case of any problems with DVDs, faulty disc(s) will be promptly replaced and mailed to you at our expense. We wish you every success with your DIY project and your quest for good sound!


Should you have any questions, call me on 0417 194 607 (from Australia) or +61 417 194 607 from overseas. We are 2 hours behind Australian eastern states (Sydney, Melbourne, Brisbane), 6 hours ahead of Europe (call before 4 PM your time) and 12 hours ahead of USA (best to call between 6PM and 10 AM your time).

 

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Item location: Canning Vale, Western Australia, Australia
Postage to: Worldwide
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