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Dynaco stereo 120 reviews

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Dynaco stereo 120 reviews

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WATCH RELATED VIDEO: Dynaco ST-120 amplifier, Pioneer, Jbl

Dynaco Stereo 120 Repair Information


Log in or Sign up. Steve Hoffman Music Forums. Location: United States. I'm possibly in the market for a good bang-for-your-buck vintage solid-state power amp. I like my current Jolida p, but the tubes I like are very expensive, and they don't last long. What are some opinions on the Dynaco series? The ST has a glowing old review from Stereophile calling it superior to most contemporary tube amps! Are these worth the investment?

What do they sound like compared to tube amps? I'd still use my Conrad-Johnson preamp in front of it. MichaelXX2 , Feb 7, Anyone heard these amps? MichaelXX2 , Feb 8, Location: Austin. I owned a Dyna when they first came out- they were actually available in kit form, but mine was "factory built" for whatever that's worth.

It was fine at the time, gauged by early-mid's standards of solid state, which, to me, was not great- a lot of solid state gear in that era had a very grainy, etched sound. It was well made and I eventually got rid of it, swapping it out for the original model Phase Linear That amp didn't sound as good to me as the smaller PL I finally left the fold of high power solid state for tubes by the mid-'70s.

I guess it also depends on application- in those days, active crossovers were, if not common, then at least part of the mix in higher end systems, and it was considered good practice in some circles to use a high powered solid state amp for bass and something else for mids and tweets. In terms of longevity, I have no idea what it would take to bring such an amp up to spec- presumably, new caps; dunno if there are any hard to get transistors in it.

That was almost 50 years ago-- a lifetime. Bill Hart , Feb 8, Location: Orlando, FL. Why not something like an Adcom GFA? HiFi Guy , Feb 8, MichaelXX2 likes this. Location: Midwest USA. I use to sell a complete upgrade kit for the Dynaco as I have owned two of them. The amp is a total brute and will give you years of enjoument. Thx , Apr 24, You must log in or sign up to reply here.

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Dynaco Stereo 120 Vintage Power Amplifier

Dedicated to the restoration and preservation of all original Dynaco tube audio equipment - Customer support for Tubes4hifi VTA tube amp and preamp kits and all Dynakitparts. Wed Apr 22, pm. The Dynaco Tube Audio Forum. Would you like to react to this message?

Evolution Series Dynaco 70 Dynakit ST Enhanced Tube Amplifier Custom Dynaco Stereo "enhanced" Vacuum Tube, Circuit Board, Audio, Vintage.

Review of VTA ST-120 After One Year Listening


We assume that all the transformers in your existing ST are in working order. Dynaco had two types of PA power transformers they used. This is the size transformer we are using in our test ST and we've had NO issues with using this size. Yes, it gets warm, but this is quite normal! Do also note, that since with our kit the 5AR4 tube rectifier tube is no longer used, the 5VAC secondary winding is also no longer used which will lessen the overall load on the PA keeping its running temperature lower! We recommend that you stick with the EL34 family of power tubes, as all our testing etc. The cricuit is based on the classic Mullard design of the 50's with certain improvements to bring it up to 'modern' tube circuits, including an LM based constant current source for stable performance. We preset the bias level to suit the EL34 family of power tubes, so that all you need to do is to build and install this kit and enjoy tube music! It has four LED's which are mounted to the main pcb which indicate that bias on all four power tubes is healthy. Should a tube fail or the auto bias module can no longer maintain the preset bias level, the relevant LED will go out indicating that the tube in question needs to replaced.

DanaTone Head-Space Solid State Headphone Amplifier

dynaco stereo 120 reviews

Skip to main content. Related: dynaco stereo 80 dynaco stereo dynaco st dynaco stereo dynaco st 70 dynaco pat 4. Include description. Dynaco 3 Items 3. Power Amplifier 3 Items 3.

My buddy John came for a visit. He's the guy who bought me the SCA80Q and the kits from you.

Analyzing the Dynaco Stereo 120 Power Amplifier


Please enable JavaScript on your browser to best view this site. David Hafler and Ed Laurent founded the Dyna Company later Dynaco with the intention of not only producing transformers, but high-quality audio circuitry. The company was incorporated in October , with business premises located at N. II watt power amplifier. Available as a kit or preassembled unit, the Mk.

DALAUDIO Retro Chassis Base, Dynaco ST-120 Replacement - Black

Dynaco st Pristine condition inside and out. Works perfectly. Just a bit dull in sounds. Not current state of the art :- However Never nearly as poor sounding an amp as some Large Mouths claim.. Having listened to a LOT of amps over the last 4! Although Reviews at the time called it a remarkable step up from the Dyna Tube amps Although in early 90's The good folks at Sonic Frontiers when it was a fledgling business and staffed with good people designed me some bespoke upgrades..

The vacuum tube stuff was pretty good, and some was great (ST). The solid state stuff's all pretty dismal. There's a PAT-4 and an ST

Not all vintage buys are wins. None of that diminishes the excitement I get from the equipment that has taken up permanent residence in my systems at home, but reality bites sometimes. Two companies that have recently struck my interest are Dynaco and Heathkit ; specifically their homebuilt kits which to some degree you can still buy. DIY amps, receivers, and audio scopes that were not uncommon the the s and s.

Some people would rather repair their Stereo without updating it, maintaining the original design. That can be difficult. We hope this web page and the hints it offers could make it easier. Later on down the page, we show some great upgrades that let you turn your Stereo into an awesome amplifier. If the power supply doesn't work, then the amplifier certainly won't work. This white-paper contains a circuit description for the power supply and FAQs.

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This page contains everything I know about the Dynaco Stereo power amplifier. The design was minimalist — only 6 transistors were used per channel. The unit operated in a class A-B mode like many tube amplifiers and used a whopping big output capacitor to decouple the DC offset of the amp like tube amps use an output transformer. Over those years, many small circuit changes were introduced to improve the stability and reliability of the amp. To avoid fuses, circuit breakers etc.

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