"Shortest Way" SW51 Amp Impressions (Simple SET Amp)

Discussion in 'Headphone Amplifiers and Combo (DAC/Amp) Units' started by Hands, Jul 12, 2019.

  1. Zampotech

    Zampotech Friend

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    Dear friends.
    Production of the third batch is nearing completion. I admit that I have not seen such chaotic and torn logistics for a long time. But it seems to be over.

    Tomorrow I will take the last photo from the production process, conduct a small photo tour and start the final stage, the testing and run stage.
     
  2. Zampotech

    Zampotech Friend

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    Photo tour. How it all happened.

    1.Case processing

    There were inscriptions on the back of the case. With this silk screen printing machine.

    [​IMG]

    Separately, the RCA connectors were prepared, disassembled and covered with a layer of solder.

    [​IMG]

    the RCA connectors are installed in the case.

    [​IMG]

    2. Preparation of the components

    Preparation of the wires

    [​IMG]

    [​IMG]

    Manufacturing of Jack connector wires was performed according to a template

    [​IMG]

    Preparation of the transistors of the power supply filter

    [​IMG]

    The amplifier PCB are mounted

    [​IMG]

    The PCB of the connectors are mounted

    [​IMG]

    The volume control PCB are mounted

    [​IMG]

    Soldered wires

    [​IMG]

    Board connections are made

    [​IMG]

    3. Transformers

    Power transformers for 100, 115, 220 volts

    [​IMG]

    Manufacturing of output transformer coils (photo provided by the manufacturer)

    [​IMG]

    Coil of the output transformer

    [​IMG]

    Transformer cores. It seems a little, but the weight is 46 kg.

    [​IMG]

    Now about the sad

    The ALPS resistors made an unplanned trip.

    [​IMG]

    The seller company from Yekaterinburg sent them to me by courier.
    But the employee handling the shipment is probably a fan of altered consciousness and sent my resistance to the city of Pavlodar (Kazakhstan)
    As a result, the cargo was stuck for a month(!) in Pavlodar. The route is as follows

    [​IMG]

    The second sadness.
    The coil manufacturer delayed production for three weeks. As I found out, it was indirectly related to the coronavirus. The company was stopped for 2.5 months, and then started processing an avalanche of orders.

    As a result, the amplifiers modestly stood in a semi-assembled state for almost a month.

    [​IMG]

    From idleness, I made two carts out of small pallets from a Korean frequency Converter.:)

    I also bought a small pneumatic bending machine for sheet steel

    [​IMG]



    Now I have a relative autonomy of production and my workshop is more and more like a small factory

    If you are not tired of the excess of photos, the photo tour can be continued.
     
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  3. Brian D

    Brian D Acquaintance

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    Yes please continue!
     
  4. Merrick

    Merrick A lidless ear

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  5. robot zombie

    robot zombie Friend

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    Never tired of seeing more photos. Really exciting to see how you're taking the reigns more and more. This bodes well for you and everyone, I think :punk:
     
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  6. insidious meme

    insidious meme Ambivalent Kumquat

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    [​IMG]
     
  7. Zampotech

    Zampotech Friend

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    Thanks. Without your interest and without your money, I would only have to drink vodka.
    I'm kidding. I so drink vodka. At the end of the week, my wife and I drink a bottle. My wife makes a delicious snack, and I bring a bottle.
    Very good vodka Khortytsia Ukrainian production. There is the same Russian-made vodka, but it's crap. Good only Ukrainian.

    [​IMG]

    I will prepare photos and post a new photo tour.
     
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  8. robot zombie

    robot zombie Friend

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    Over here, that stuff is just called Khor, though the bottle is exactly the same. It actually is really good! Very hard to find locally, though. Which is a shame, because it's at least as good as any other option going for literally 4 times the price. To me, good vodka is smooth and warms you up with a sweet flavor that melts away. People here can't understand it, man. We've got stuff like Tito's and Grey Goose from Texas and France respectively, which are good too, but IMO the Ukranian stuff is just as good or better for half of the price. Can't pull people away from those two though. The rest just drink Smirnoff at parties. More for me, I suppose.
     
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  9. crenca

    crenca Friend

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    There is a reason why its 'Kievan Rus', and not 'Rus Kievan'. You taught them every thing they know ;)
     
  10. mdr30

    mdr30 Rando

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    Most vodkas today are made from industrial etanol with some flavour added.

    The ones produced the old fashioned way with care taste best. Don't know how many of these are around today.

    About five years ago, when I last drank it, the Polish Zytnia was still among them. Best vodka I ever drank. And as a Swede I've tried a lot of brands from the Northern liquer belt during 40 years of practise.

    If you experts out there have information about true production processes of real vodka, chime in.

    Now I'm leaving the local restaurant after a handful of Jamesons and pilz to listen to the Hot Rat Sessions on my favourite headphones and SW51.
     
    Last edited: Aug 28, 2020
  11. Zampotech

    Zampotech Friend

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    now Russia has an amazing situation with vodka. The best vodka is vodka produced in the North Caucasus illegally, in the city of Beslan. Excellent wheat alcohol and local artesian water are used.

    The government is fighting illegal vodka with special brands with an individual number, but fortunately this is not very effective.

    Also, we do not have a criminal penalty for moonshine and my friends are passionately engaged in the production of a variety of drinks. Drinks are made by direct distillation and through distillation columns.
     
    Last edited: Aug 28, 2020
  12. dark_energy

    dark_energy Friend

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    On the general enthusiasm here. Love to see just the work and stuff that goes into it. If all souls would be decently productive no one would need to lean on anyone to fill their pockets and success and just enjoy their lives.. "as you do."
     
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  13. Wilson

    Wilson Socially Anxious Volleyball

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    So refreshing to see such love and care. Owners of your amplifiers are truly fortunate, @Zampotech.
     
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  14. Zampotech

    Zampotech Friend

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    Dear friends
    I've already started sending amps. I won't be able to send everything at once, I send small batches of 2-4 pieces per shipment.
    This batch was made for a very, very long time. Almost like running on sticky clay, lots of energy and very slow speed. It seems that the effects of the coronavirus have already ended, but turbulence still persists.
    All customers will receive an email about the start of sending. I have divided the entire batch of 10 amps, and after sending ten amps, I will send emails to the owners of the next ten amps.
     
    Last edited: Sep 16, 2020
  15. robot zombie

    robot zombie Friend

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    Like Ive told you before... some things are worth waiting for. Appreciate you sticking it out, honestly. You couldve said it was too much getting in the way and just refunded whatever was paid but here we are. :)
     
  16. insidious meme

    insidious meme Ambivalent Kumquat

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    Also think ppl here didn't keep badgering him about delivery. Or maybe he has the patience of Job. Still good to see progress.
     
  17. Zampotech

    Zampotech Friend

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    It's alright. I'm always ready to take a kick in the ass.
    A friendly kick in the ass is always two steps forward :)
     
  18. rtaylor76

    rtaylor76 Can't wipe his tag

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    It is only because there is no direct shipping between Russia and the US and must go through Poland. When you track the package through Russian Post, it takes a couple of weeks to get to Moscow and then through Customs. Then there is no movement in tracking for about a month. Then, mysteriously it will hopefully show up in Chicago and continue its way through normal USPS. At leas that is was my experience.

    During that 30 days there is no tracking, however once it gets to Moscow Customs, you can usually just track from USPS with that same tracking number since the destination country picks up the shipping.

    I hope all of that helps everyone waiting on their items. It is packed rather well, so no worries there. Just make sure you have an IEC power cable on hand so you can try it out right away.
     
  19. gixxerwimp

    gixxerwimp Professional tricycle rider

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    It's too bad that tracking evaporates midway for US shipments. I've had that happen with (mass)Drop via DHL after it gets to das Mutterland. For shipments to Taiwan, Почта России tracking has been very good, with timely updates if you sign up for them. Doesn't help you guys much though. Finally, a disadvantage of being in the CONUS :p

    Regardless, this amp is worth waiting for. I haven't heard any real TOTL stuff, but I will be satisfied if this is the last amp I ever own.
     
  20. TheloniuSnoop

    TheloniuSnoop Facebook Friend

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    Can't wait to get mine.
     
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