An overview of 30L-1 Maintenance ~ some 50 years later

Unless you are competent to do repairs, or are willing to find a mentor and undergo the training needed, STAY OUT! Go get help from someone skilled in repair. ... amplifier until it gives you a problem to consider. Best 73s, de Bill N7OTQ/K0CXX wec 03/17/19 . Don't "BLOW A GASKET", BLOW A FUSE When first designed by Gene Senti, and then ...Web

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Sub-10 / Sub-12 / RPW-10 Repair Blog

Posted November 24, 2019 (edited) SUB-12 Plate serial number 06310349. This amp had no power. The PDC board was shorted, which blew the transformer drive fets and was causing the fuse to blow. The PDC was removed, cleaned and repaired. Q5 was upgraded to a 2N4401 and the amp was fully recapped with Nichicon caps.Web

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Guitar Tube Amp Restorations, Mods, and Repairs by Carl's …

If you need expert repair or restoration, contact me to get your amp back up and running. Experience the difference between taking your amp to the "tech" and getting expert …Web

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Valve Technicians

275 Boggy Creek Rd, E-mail: martstoneamplifiers@hotmail. Repair to valve amps, and construction of Class-A and audiophile amplifiers. Factory 3 / 43 Cochranes Road, Moorabbin. Phone: 0439 635 841 E-mail: [email protected]. Repairs to all type of amplifiers for guitar, bass and PA.Web

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Service Work and Upgrades for Naim Audio

Naim Audio NAC122 Servicing cost £300 Upgrades available: ***. Naim Audio NAC202 Servicing cost £330 Upgrades available: ***. Naim Audio NAC252 Servicing cost £480 Upgrades available: **. Naim Audio NAC282 Servicing cost £360 Upgrades available: ***. Naim Audio NAP90 Servicing cost £270 Upgrades available: **.Web

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Amp repairs

Repairs, upgrades, or a restoration for your Amplifiers, Electric guitars, FX pedals, or Speakers. ... Now I am retired and I repair amps and guitars as a hobby. Amplifiers: Rewire, recap, locate and replace failed components, clean noisy pot's, repair or replace circuit boards, install new speakers, install new tubes, correct biasing problems ...Web

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Amplified Parts

See our guitar pedal build guides and layouts to get started on your own custom pedal using parts available here! Get Building! Free Shipping *over $95 in the continental U.S. 16 …Web

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Hafler Amp

New PA-7.3 Hafler Driver Boards. The PA-7.3 is a new version of the PA-7 retaining the heart of the original but with sonic improvements and much simpler to install than the PA-7 V2. Kit and installed version ready. Elite and Ultra driver boards are now ready to install into Hafler DH-200/220, XL-280, DH-500 and XL-600 amps.Web

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High End Audio Repair Hi-End Repair Service and Custom Upgrades …

High End Audio Repair Hi-End Repair Service and Custom Upgrades Amplifiers. Save to Favorites. High End Audio Repair. (CTRL + D) H igh A udio R. Hear the Improvement in Your High End Audio Equipment. Hear LLC Brooklyn, N.Y. Ph: (718) 377-8010. E-mail:Web

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BMC Repairs

We offer a wide array of services ranging from simple re-strings, set-ups, pickup repairs, electronic upgrades, structural repairs, finish work and full restorations. Our facility features an industrial grade Uni-Cure spray booth and our fretwork is performed utilizing our PLEK machine, which offers unparalleled accuracy with a tolerance of .001mm.Web

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The Ten Most Significant Amplifiers of All Time

Dynaco ST-70. Along with Avery Fisher's 500c, David Hafler's ST-70 put high performance audio in the American home. Introduced in 1959, the ST-70 is the world's most prolific stand alone amplifier with over 300,000 units manufactured. Amazingly, its clear, three-dimensional sound is comparable to many amplifiers made today.Web

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Dynaco-Doctor

Restoration Module - Coming 6-08 - This is an exact replacement for the original Dynaco PC-10 board fabricated from Mil-Spec materials. This board is a must for any serious restoration of the Dynaco SCA35 to full stock condition. It uses the 7199 circuit from the original (it is not a redesign using the inferior 6GH8).Web

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Is a totally refurbished amplifier considered better than original?

Because of this, old unused capacitors are prone to failure. This is one reason it is good to reconnect an old amplifier that had been sitting on a shelf and run it a for a few hours every year or so. Capacitor technologies, with regard to audio have changed and vast improvements have been made in recent years.Web

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AudioProz : Full Article Details

APT 1 Amplifier Upgrades and Repairs Technical Information: (Modification) Jun 6th, 2022. The APT 1 amplifier is a truly advanced product and even by today's standard, a very modern audiophile amplifier design. Some of it's design technology is only now being implemented in fancy name equipment. Seldom are so many of it's clever design tricks ...Web

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Electrical Services | Upgrades | Repairs | Installation

McClain Bros. is here to help you finish your renovations in a safe and affordable way. Our reliable team of electricians is here to help you out with electrical outlet installation services to appliance installations and …Web

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REPAIRS & UPGRADES | Mysite

REPAIRS & UPGRADES; Amp Repair Pricing; REQUEST ESTIMATE. Blog. More. REPAIRS & UPGRADES - Pricing. Fender, Yamaha, Mesa Boogie, Pioneer, Korg, Mackie... If it was made for music and sound, we'll work on it! Our labor rates range from $35/hr to $80/hr depending on the type of equipment. INSTRUMENT AMPS. Guitar, bass, …Web

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Bose 1801 (1974)- Restoration

Stop rotating the trimmer as soon you see the crossover distortion disappear. Leave the amplifier on, without signal and load, and check the heat sinks temperature (with your hand). If the temperature goes up on one channel, reduce the bias setting on …Web

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Update My Dynaco

UpdateMyDynaco has designed a high performance amplifier replacement module kit that lets you make your Stereo 120 better than new. The Dynaco Stereo 120 was the first powerful (60 Watts/Channel) transistorized stereo power amplifier in wide production. My uncle had the Stereo 120, PAT-4 Preamp, FM-3 tuner, and A-25 Loudspeakers.Web

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New service and repair costs?

Every uk service/repair has to booked in through a dealer, so that is the conversation people should be having. The prices suggested by Naim are just a guideline- a dealer may choose to set a different price, as is their right. Dealer quote for 252 service was £345 before midday on 6/1, £414 thereafter.Web

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Testimonials – JS Audio Repairs

XA -200R repair & upgrade. Musical Fidelity XA-200R upgrade. It's been roughly 3 weeks since I delivered by beloved but aged XA-200R down to JS Audio. I traveled back down to collect my amplifier, on the day after the very strong winds, that caused so much destruction around various parts of the uk.Web

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Whatever Happened to Counterpoint? | Stereophile

Michael Elliott joined Counterpoint in 1979 to design a vacuum-tube moving-coil head amp; this became the SA-2, the company's second product. In 1980 he and his now ex-wife, Laura Hendershot, purchased the company and moved it to San Diego from Beverly Hills and began manufacturing more SA-1s and the new SA-2s.Web

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Upgradng Yaqin MC-13S

My repair person gave me the parts I would need, although I wanted to double check because he's ultra busy - and I want to make sure I understand as best I can. 1) Coupling Capacitors: .47mF 600v (or more) x 4. 2) Bypass capacitors: 470mF 25v x2. 3) Grid Resistors: 2w (or 3) at 820 ohms. First - could someone confirm this is accurate …Web

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AudioProz : Full Article Details

The APT 1 Amplifier and Apt Preamp upgrade consists of three levels to suit your modification needs. If you are looking for the APT 1 Upgrades and Repairs (Read about them here) APT Holman Preamp Upgrade: YES ! we are definitely providing these upgrades at the current date. Level 1: We repair the obvious faults and clean all controls …Web

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How to Upgrade Your Honda Accord Sound System | GetJerry

The first place to start is with the speakers—these are the front line of your audio system, and upgrading them will significantly impact your audio quality. Here are a few of the best speaker upgrades to get for your Honda Accord: MTX Terminator 6 two-way speakers. : $49.95. Infinity Reference 6530CX speakers.Web

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Electronics Repair | Www.technicalxpectations | Connecticut

Blog More WE CAN HELP! Crackles? Buzzes?, Poor tone? Up in smoke? FREE ONLINE ESTIMATES GUITAR AMPS Tube and Solid State Amps. All Makes and Models. …Web

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Cost To Replace Electrical Panel (2023 Guide) – Forbes Home

Show more. The average cost to replace an electrical panel differs greatly based on how many amps you are upgrading. For the lowest 100-amp panels, the cost of an upgrade ranges from $400 to $800 ...Web

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AL811H_repair

This is an important modification to the AL811H. This mod removes the grid resistors and bypass capacitors, and directly grounds the grids. In addition two gas voltage clamps, GT1 and GT2, are added. These are 125-150 volt clamps. These clamps are available from orders@ctrengineeringinc. This mod prevents:Web

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Heathkit SB-200

. Half Century Old Icon of a Bygone Era. Time Owned: more than 12 months. The Heathkit SB-200 is an iconic amateur radio linear amplifier first introduced in 1964 with the last unit delivered in 1983 as the SB-201 (minus 10M) – a phenomenal 19 year production run. It was designed to be affordable at $200 in 1964 (rising to $479 in ...Web

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High End Audio Repair Quad Service and Custom Upgrades

If you do not see the make or model of your audiophile component listed on High End Audio Repair, please contact us. E-mail: benchtech@highendaudiorepair. Kindly note that a spam filter has been implemented. If you have not received a response to your email in a timely manner, feel free to call. Phone: (718) 377-8010.Web

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Amplifier Repair

A simple guide for getting your amplifier repaired - The Amp Lab is proud to offer car amplifier repair as a service to our customers, and we hope this guide will help keep it …Web

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Amp Repair Parts

We supply parts for many brand-name Guitar Amplifiers. We ship to the US and Canada from our Clearwater, Florida USA warehouse. Most orders placed before 12 Noon …Web

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Amplifier Repair | How to Repair Electronics

What Are the Steps to Amplifier Repair? Amplifiers are assembled with many of the same components as other appliances, so fixing basic elements is similar. For example, cords …Web

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Repairing and Upgrading Your Computer

How to get started on PC repairs and upgrades. For refurbishers' specific material, see Manuals for Computer Refurbishers. This wiki is part of the Pro Tech Network. Getting Started on Computer Repair. Introduction to Computer Repair. Computer Upgrading vs Repairing vs Buying New.Web

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