Cayin HA-6A Class A KT88/EL34 Tube Headphone Amplifier

[Newsee]

Thanks @Gold Fox for the compliment.
However I found out, moving noisy stuff away works better =D
I even bought a frequency spectrum meter and managed to identify every device doing nasty things.
For the record my new setup looks like this...(Although I loved my old).

Nice pic, nice setup.
Which spectrum meter? Could you share a link perhaps?

 

[Honeypot]

This one!

I bought it also because part of my hobby is electronics and electromagnetism, and needed one of these!

 

[Andykong]

Thanks @Gold Fox for the compliment.
However I found out, moving noisy stuff away works better =D
I even bought a frequency spectrum meter and managed to identify every device doing nasty things.
For the record my new setup looks like this...(Although I loved my old).

This one!

I bought it also because part of my hobby is electronics and electromagnetism, and needed one of these!

From the photo you provided, I believe you are using tinySA Ultra ZS405

I think this is helpful to other tube amplifier users, I'll pin this post to the HA-2A FAQ because I have compiled a fairly complete reference collection there.

 

[realmccoy]

Thanks @Gold Fox for the compliment.
However I found out, moving noisy stuff away works better =D
I even bought a frequency spectrum meter and managed to identify every device doing nasty things.
For the record my new setup looks like this...(Although I loved my old).

Agree with you. I just bought a power supply extension cable for my router and moved it just 2 feet away and it did the trick. Although when I turn my tv it can capture tiny bits of static noise but very minimal. I’m happy with my 6A now

 

[Newsee]

From the photo you provided, I believe you are using tinySA Ultra ZS405

I think this is helpful to other tube amplifier users, I'll pin this post to the HA-2A FAQ because I have compiled a fairly complete reference collection there.

Hi @Andykong , welcome back! I do not remember seeing you posting for quite a long time.

 

[aleopold]

Hey @Gold Fox are the 7851a nos tubes compatible with the h-6a?

 

[Gold Fox]

Hey @Gold Fox are the 7851a nos tubes compatible with the h-6a?

Yes, they're compatible, and remember to set the TUBE SEL. to EL34 my friend!

 

[aleopold]

Yes, they're compatible, and remember to set the TUBE SEL. to EL34 my friend!

One more question for you. What about the 350B?

 

[Gold Fox]

One more question for you. What about the 350B?

The 350B has a significantly higher filament current than a standard 6L6GC, almost double—while it can be used, it’s not recommended.

 

[jp11801]

OMG I have gone bat Schlitz crazy with tubes, 4 more rectifiers SCITE and Raytheon Japan, 2 pairs of Tungram e80cc to compliment my Philips pair of e80cc and two pairs of Osram/GEC kt66s. I may need professional help with this tube addiction.

 

[AnyDave]

OMG I have gone bat Schlitz crazy with tubes, 4 more rectifiers SCITE and Raytheon Japan, 2 pairs of Tungram e80cc to compliment my Philips pair of e80cc and two pairs of Osram/GEC kt66s. I may need professional help with this tube addiction.

Those Osram/GEC KT66s are wonderful. I doubt you'll regret grabbing those.

 

[jp11801]

Those Osram/GEC KT66s are wonderful. I doubt you'll regret grabbing those.

well at least if I ever upgrade to the Aegis, I can use the Osram tubes in that as well

 

[aleopold]

OMG I have gone bat Schlitz crazy with tubes, 4 more rectifiers SCITE and Raytheon Japan, 2 pairs of Tungram e80cc to compliment my Philips pair of e80cc and two pairs of Osram/GEC kt66s. I may need professional help with this tube addiction.

I have the same problem

Been on a NOS 6L6 kick lately. I’m in shock how good those nos tubes are.

 

[jp11801]

I have the same problem

Been on a NOS 6L6 kick lately. I’m in shock how good those nos tubes are.

Asking for a friend, any favorites

 

[aleopold]

Asking for a friend, any favorites

Oh yes. The Reflector 6cp3-e is the best tube for $50 I’ve ever heard. Beats every other tube I own. Except …. The RCA black plate 6L6GC sets the standard for immersion in sound.

These tubes have the mids of an el34 with tight and impactful bass. So to my ears they are just right. But I do plan on trying the el37 and gec kt66 soon…