Author Topic: My Tube Journey  (Read 210390 times)

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Offline tony

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Re: My Tube Journey
« Reply #480 on: Aug 05, 2015 at 01:03 PM »
honey badger 2 fitting the parts.... ;)

how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline edrel sison

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Re: My Tube Journey
« Reply #481 on: Aug 05, 2015 at 01:48 PM »
Who is the owner Tony?

Offline tony

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Re: My Tube Journey
« Reply #482 on: Aug 05, 2015 at 04:40 PM »
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline edrel sison

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Re: My Tube Journey
« Reply #483 on: Aug 05, 2015 at 06:22 PM »
Hihiramin ko yan pag natapos..

Offline tony

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Re: My Tube Journey
« Reply #484 on: Aug 05, 2015 at 07:08 PM »
Hihiramin ko yan pag natapos..

sure, ikaw pa.....;)
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline pTrader

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Re: My Tube Journey
« Reply #485 on: Aug 06, 2015 at 12:19 PM »
ano ibeg sabehin ng push-pull?

Offline tony

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Re: My Tube Journey
« Reply #486 on: Aug 06, 2015 at 12:20 PM »
ano ibeg sabehin ng push-pull?

https://en.wikipedia.org/wiki/Push%E2%80%93pull_output

https://www.youtube.com/watch?v=JRjVjjo3raE

eto naman ang single ended....

https://en.wikipedia.org/wiki/Single-ended_triode

if you want to hear the difference between the two, come to the house and i will treat you to both... ;)

btw, both the Dared and the AV200 are examples of push-pul amps...
« Last Edit: Aug 06, 2015 at 12:31 PM by tony »
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline pTrader

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Re: My Tube Journey
« Reply #487 on: Aug 06, 2015 at 12:38 PM »
https://en.wikipedia.org/wiki/Push%E2%80%93pull_output

https://www.youtube.com/watch?v=JRjVjjo3raE

eto naman ang single ended....

https://en.wikipedia.org/wiki/Single-ended_triode

if you want to hear the difference between the two, come to the house and i will treat you to both... ;)

btw, both the Dared and the AV200 are examples of push-pul amps...

paano po ako makakapunta sa inyo? kapalan ko na mukha ko, marami na rin beses kitang inabala sa forum dito..

salamat sir, paki PM na lang po...

Offline tony

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Re: My Tube Journey
« Reply #488 on: Aug 06, 2015 at 12:39 PM »
paano po ako makakapunta sa inyo? kapalan ko na mukha ko, marami na rin beses kitang inabala sa forum dito..

salamat sir, paki PM na lang po...

ok lang, nasa hiraman pa yung mga unts ko....
pag me nabuo ako na bago, or nakauwi yung mga amps, pm kita...
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline tetablanco

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Re: My Tube Journey
« Reply #489 on: Aug 06, 2015 at 06:00 PM »
ok lang, nasa hiraman pa yung mga unts ko....
pag me nabuo ako na bago, or nakauwi yung mga amps, pm kita...

I really liked your 5994 SET amp. Was that a PP amp?  :)

Offline tony

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Re: My Tube Journey
« Reply #490 on: Aug 06, 2015 at 06:04 PM »
I really liked your 5994 SET amp. Was that a PP amp?  :)

no sir, it is a single ended, triode wired amp...

in fact, all my single ended amps are straight away triode wired...
i have listened to ultraliear and pentode wired single ended amps but did not like it...
so it is triode for me all the way....

triodes are very desireable in SET amp, and any pentode tube wired as a triode is a triode,
triodes are such voltage sources with very low plate resistances makes them very suitable in a SET...
triodes have negative feedback already built in....no need for global negative feedback...
« Last Edit: Aug 06, 2015 at 06:24 PM by tony »
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline tony

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Re: My Tube Journey
« Reply #491 on: Aug 07, 2015 at 07:34 AM »
psu module for my Honey Badger 2 build, soft starting and speaker protection units mounted....

how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline tony

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Re: My Tube Journey
« Reply #492 on: Aug 07, 2015 at 02:37 PM »
Stromberg-Carlson, what makes this small amp sound so fabulous? small OPT's, no boutique caps, and yet bass is tight and fast, cymbals shimmering,,,,;)

how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline CoolTOYZPH

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Re: My Tube Journey
« Reply #493 on: Aug 07, 2015 at 02:48 PM »
Sir Tony, can it also be because of the NOS Audio tubes?

Stromberg-Carlson, what makes this small amp sound so fabulous? small OPT's, no boutique caps, and yet bass is tight and fast, cymbals shimmering,,,,;)
Where is the Love? BEP

Offline tony

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Re: My Tube Journey
« Reply #494 on: Aug 07, 2015 at 02:55 PM »
7408's are 6v6 tubes, 7199 input/phase splitters....6eu7 for ceramic phono stage.....yes, most likely because of the original tubes....
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline pTrader

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Re: My Tube Journey
« Reply #495 on: Aug 07, 2015 at 04:37 PM »
yung bang tube equalizer pwede bang i-custom at  lagyan ng amplifier?

Offline tony

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Re: My Tube Journey
« Reply #496 on: Aug 07, 2015 at 05:03 PM »
yung bang tube equalizer pwede bang i-custom at  lagyan ng amplifier?

pwede kung sa pwede pero kung ako hindi ako napatol sa ganyan....
kuha ka na lang ng gumagana nang amplifiers at pag kabitin mo sila...
« Last Edit: Aug 07, 2015 at 05:04 PM by tony »
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline tony

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Re: My Tube Journey
« Reply #497 on: Aug 18, 2015 at 08:23 PM »
 Honeybadger 2 update...

chassis powder coated flat black, FB412....


primary circuit wirng copmpleted, soft start functions okey...rails idle at +-50 volts...


how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline tony

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Re: My Tube Journey
« Reply #498 on: Aug 24, 2015 at 07:43 PM »
Stromberg Carlson mono 101...very nce to listen to on a rainy afternoon...





how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline tony

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Re: My Tube Journey
« Reply #499 on: Aug 27, 2015 at 12:20 PM »


how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline tony

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Re: My Tube Journey
« Reply #500 on: Aug 27, 2015 at 12:38 PM »
some kindhearted members at PDVD donated to me a Luxman LV-103 and an LV105 to play around with....
they are Japanese pier units and therefore run on 100 volt mains.....
as i am perennially afraid of Murphy, i decided to convert them to 230volt mains instead...

both the LV-103 and the LV105 use the 6CG7 tube long tail pair as VAS to drive the
lateral mosfet output stage. a separate small power traffo is used to light up the filaments.....
since the 6CG7, (a 9pin analogue of the 6SN7), likes better to run on higher plate voltages,
i have decided to replace them with 6dj8 type tube, but this is another story altogether... :D

main power traffos removed:
an angle grinder was used to remove the welds on the side of the power traffos to separate the E's from the I's...
prior to grinding these 2 traffos were completely  immersed  in a tub full of lacquer thinner for 2 weeks.....





with the coil assembly yanked out of the core, the bobbins were pried open to separate the primary and secondary chambers.....these traffos have completely separate primary and secondary chambers so that only the primary coils is changed...the secondary coil assembly is left untouched...




so the primary coil is put on my winder to count the number of turns which turned out to be 220 turns of #19 magnet wire, therefore at 230 volts this becomes 506 turns of #23 wire...


then comes the windup for the 230volt primary...




once done, installing the E and I's comes next....since i do not have access to tig welding, i decided to do the traditional interleaving, but first the weleded edge must be grinded to make it easy to separate the laminations...



the E's completed...

inserting the I's...


finally inserting the copper banding, mu-metal wrapping and mounting brackets installed completing the job..





completed traffo is immersed into a tub of clear air drying polyurethane electrical varnish..


completed traffos ready for action...



````````2nd

there is a 2nd smaller traffo and is used to power the tube filaments...
it is likewise converted to 230 volts..



primary turns are counted on the winder...
there were 1008 turns of #30 wire counted, to convert to 230vac,
i wind 2600 turns of #35 for primary coil..
secondary windings have two coils of 170 turns each of #25 magnet wire..


winding new primary coil...


reinserting the E-I's..


finally putting back the endbells and brackets...


completed traffo...



how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline dana

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Re: My Tube Journey
« Reply #501 on: Aug 28, 2015 at 12:05 PM »
ayus papaT...
btw, whats your plan with the power amp section of that luxman, restore/replace ?

Offline tony

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Re: My Tube Journey
« Reply #502 on: Aug 28, 2015 at 12:32 PM »
ayus papaT...
btw, whats your plan with the power amp section of that luxman, restore/replace ?

restore, i sacrificed the LV-103 to get the tone control section of the LV105 fixed...
the 6CG7 is replaced by the japanese 6RHH8, better suited to work at lower voltages
being a member of the 6dj8 family....

tone control board about to install..


japanese 6RHH8 tubes in place ot the 6CG7...


how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline remington

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Re: My Tube Journey
« Reply #503 on: Aug 28, 2015 at 01:19 PM »
nice master parinig pag natapos ^-^
tube + audio nirvana = beyond...

Offline dana

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Re: My Tube Journey
« Reply #504 on: Aug 28, 2015 at 03:05 PM »
"restore", dat's more lyk it...
nice to hear that papaT. O0
« Last Edit: Aug 28, 2015 at 03:06 PM by dana »

Offline tony

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Re: My Tube Journey
« Reply #505 on: Aug 28, 2015 at 03:53 PM »
nice master parinig pag natapos ^-^

of course....
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline tony

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Re: My Tube Journey
« Reply #506 on: Aug 28, 2015 at 03:55 PM »
"restore", dat's more lyk it...
nice to hear that papaT. O0

on back burner pa, hindi ko alam kung kailan matatapos, haba ng pila...;)
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline tony

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Re: My Tube Journey
« Reply #507 on: Sep 01, 2015 at 07:37 PM »
it pays to have plenty of friends on facebook...guys i have never met,
yet sending me early Christmas gifts,
tubes are from Ilagan Isabela, ESD mat and OPA445 and
Vishay power resistors from two guys in Cebu...
tubes are National USSR 6L6GC, JAN Sylvana 8L6Gwb, JAN Tung-sol 6SL7
the green thinghy is an ESD matt...





« Last Edit: Sep 01, 2015 at 07:38 PM by tony »
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline tony

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Re: My Tube Journey
« Reply #508 on: Sep 02, 2015 at 07:40 AM »
3rd 6LU8 pp amp build.....i purchased these tubes for $1 each, now they sell for 4$....

OPT's...


filament only shows 48 watts draw...


partial underside...


preliminary schematic...
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline remington

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Re: My Tube Journey
« Reply #509 on: Sep 02, 2015 at 04:37 PM »
pwede ba ma home audition pag natapos master ;D
tube + audio nirvana = beyond...