Topic: RCA-Victor stereo / GE reciever

[efren_]

sorry po sa low quality pics, taken by my nokia 6288 only.

[JojoD818]

good job!

[efren_]

made  the ff. mods:
1. replace the "auto type" transfo with isolated type.
2. all heaters were DC supplied instead of AC
3. 6CA4 rectifier replaced with 5Y3
how does it sound?
1. full details even at low volume, no hum at idle, smooth texture, the instruments sounded the way they should.

have to cover those mylar caps, the IF cover should look good on them,

[efren_]

sir JOJO,

not yet finished sir, doing some finishing touches on the exterior. hopefully few days more ....

[macdon]

sir JOJO,

not yet finished sir, doing some finishing touches on the exterior. hopefully few days more ....

Ayos lang yan - slowly but surely

Iba talaga ang fulfillment kung sariling gawa vs bought - congrats on the achievement.

[efren_]

sir macdon,

many thanks sir, pinoyDVD is the major factor that got me into tubes, plus everytime that i recalled those yesteryears of the good 'ol tube era( di pa naman  ako matanda, FYI ) it brings nostalgic memories specially when i played cd's like VERA LyNNE, ELLA FITZGERALD, the enchanting voice of NAT KING COLE, the blending of instruments of JAVIER COUGAT, the cool and jazzy STAN GETZ, the melancholic PETER PAUL & MARY, the list goes on & on......

[efren_]

these bottles awaits my future projects.

[JojoD818]

wow dami tubes! 

[efren_]

wow dami tubes! 

sooner or later i'll be needing those output trannies from sir edrel, for the 6F6 SEP brewing in my mind....

[efren_]

recently i removed the crossover network from my Onkyo D-032AX BS to find out the effect on the tube amp


I only retained the 4.7caps to isolate the tweeter, the result... much better to my ears, more natural sounding than before.

the modified vintage amp with pre-out to feed the JLH ss classic class A amp


now both amp not only amplifies music/audio signals but to me it also amplifies the singer's emotion...

[efren_]

greetings,

these "heaterless tube" has the characterestic of being warm and mellow, even non-tube enthusiast will totally agree

cheers

[efren_]

Sir Edrel,

as per specs sheet sir, these bottles are no good than a headphone amp.? They were huge and I thought i can squish 4-5 watts on SE. Sayang naman




while these gold pin drivers (C3g, made by SIEMENS/TELEFUNKEN) eagerly waits a good output Tube

[edrel sison]

efren i saw some amps over the net that can take both 6V6 and 6F6 though i have not tried both tubes..

0.85 watt for a max plate voltage of 250 and bias 33mA (as the specs suggests) is more than enough to rock your room, provided you got a sensitive transducer out there..

in the world of SE amps, one has to also play with sensitive speakers...

you see, addiction in tubes brings chains to sometimes unforseen necessity and need..

in short, "nanganganak ng gastos"

[efren_]

efren i saw some amps over the net that can take both 6V6 and 6F6 though i have not tried both tubes..

0.85 watt for a max plate voltage of 250 and bias 33mA (as the specs suggests) is more than enough to rock your room, provided you got a sensitive transducer out there..

in the world of SE amps, one has to also play with sensitive speakers...

you see, addiction in tubes brings chains to sometimes unforseen necessity and need..

in short, "nanganganak ng gastos"

sir Edrel,

amen to that sir!

[edrel sison]

efren got your busted OPT, wimpy for its size..i am not surprised that it didnt lasted..

try a set of my OPT and see if it suits you.

[efren_]

efren got your busted OPT, wimpy for its size..i am not surprised that it didnt lasted..

try a set of my OPT and see if it suits you. ;

sir edrel,

this are the original spkrs of RCA-Victor, 6AR5 output SE, etched at the back is "DORTMUND MAGNETFABRIK"
judging from the looks of it, mukhang sensitive siya.
Is it worth having it restored?

[efren_]

Sir's,

anybody here in Pdvd who can restore this speakers? not neccesarily original, ok pa po voice coil, kailangan palitan ang cone, spider, edge.

Mod's sorry po medyo off topic.

[JojoD818]

Efren, I believe we have someone here at the speaker section that helps restore/repair speaker drivers...

HTH

[edrel sison]

efren, honestly if you will have to ask me i will not waste my time and precious peso restoring those. you cannot bring them back to its original state.

if i were you i will look for an original driver. i know an alnico 12 inch full range transducers which sells for 4K pair and they are originals..

[efren_]

@ sir jojo d,

many thanks for your reply sir

@sir edrel,

yes sir, even me have doubts about those drivers...back to the storage room .
 i saw at deeco marcos hi way 12" STARVOX rated at 10w/ 8 ohms, the magnet is also small, the size of those from from antique transistor radios, i inquired about it and the saleslady replied " wala na nga po magka interes bumili nyan luma na kasi, 10 years n ako dito inabot ko na yan,  kaya binebenta nalang 450 isa." I was short of cash so i said i will return the next day to purchase it, never bother to tell her not to sell it to anybody, since it 's been sitting there for 10 maybe 20 years, guess what next morning when i returned, bakat nalang ng pinagpatungan inabot ko!!! :'( :'( :'( binili daw ng matanda! well the old man sure know his stuff.

btw yung mga pinagawa kong opt, once installed sa rebuilt RCA 6ar5, malamang wala na tanggalan, that means another pair sir edrel, nanganganak nga !!!

[edrel sison]

Just graduated from the Military Academy, cadets waiting for some real action :









they are on their way Efren and will land mountainous Rizal by noon tomorrow..

[edrel sison]

TIKASSSSSSSSS................PAHINGA!!




PASULONNGGGG....KAD!

[alexg]

efren i saw some amps over the net that can take both 6V6 and 6F6 though i have not tried both tubes..

0.85 watt for a max plate voltage of 250 and bias 33mA (as the specs suggests) is more than enough to rock your room, provided you got a sensitive transducer out there..

in the world of SE amps, one has to also play with sensitive speakers...

you see, addiction in tubes brings chains to sometimes unforseen necessity and need..

in short, "nanganganak ng gastos"

You can squeeze more than 1 watt on an SE 6V6, I have already tried it.

It even sounds lovely with G2's voltage fully regulated on pentode mode, hint: use a tube regulator. 

The Zen OPT will work.

Edrel, lovely OPT's, for whom?

[jakeadriano]

TIKASSSSSSSSS................PAHINGA!!




PASULONNGGGG....KAD!

ba!! talagang me tigas,tigas pahinga ka pa ngaun ha! ibang klase ka na talaga ngaun bro...congrats to team TAMODRAH!!!

[efren_]

@sir Alexg,

many many thanks for the precious info sir

@sir edrel,

  :oHuwaw Gandah!!!

[efren_]

sir edrel,

my bottle of Chivas is almost empty, another one won't hurt....after I installed those beauties of course...
i don't want the B+ soldered to the plate, the UL tap to the B+ & the Plate tap to G2 of course

[edrel sison]

alex this is for efren's busted OPT. i told him just make new rather than rewinding the wimpy original.
 
this would be also the revision 1 to the zen opt which you currently have right now.

[edrel sison]

ba!! talagang me tigas,tigas pahinga ka pa ngaun ha! ibang klase ka na talaga ngaun bro...congrats to team TAMODRAH!!!

yari ka sa akin jake adriano!

[edrel sison]

efren i really hope malasing ka para mas gumanda lalo ang tunog..let me know first thing how the new OPT fares..

[efren_]

sir edrel,

Yes sir, i"ll let you know, and the first one