WTB: F4 PCB boards

[RKH]

Does a tube preamp use lower voltage, or at least, safer voltages?🙂

No, not necessarily. However, I'm going to try (gain may be too low) the Peter Millet head phone/line amp. It's actually a hybrid pre/head phone amp, using a unity gain buffer (op amp) on the output. The 'low voltage tube' side of things hinges on his use of tubes originally designed for automobile use from the pre- silicon days. That's my limited understanding any way.

Ryan

 

[ashaw]

I'd like 14 channels worth.

 

[ashaw]

Plus 7 PSU boards.

 

[jrebman]

Looks like we're already very close to 50 -- in the mid 40s with some saying they'd probably take more.

-- Jim

 

[SCD]

Off Topic Pre amp discussion

Hello Carpenter:

If you want a low voltage tube pre amp you should consider some of the Auto audio tubes. The one that seems to get the most attraction is the 6GM8. I think it has great potential to use in this application.
I am not knowledgable on the design so I hope someone else can help out

 

[carpenter]

Thanks, SCD!

 

[jims]

To help us reach our goal of faster, I will increase my earlier request from 2 sets of boards to 5 sets!

JimS

 

[Daveze]

I'll also go in for 5 sets.

 

[mongosound]

F4 pcb's

I asked for 3 stereo F4 pcb's, make it 5 please.
We are getting there.....

Thanks!!!!

 

[sandstorm33]

Need one more set!!!

I will need another set!!!😎

Sorry for the duplication !!But I will need just one set!!

 

[Myron]

Hi, I'm also in for two PCBs plus 2 PSU boards. Thanks

 

[hershann]

Peter,

also emailed you 🙂


would like a set of pcb - audio (stereo) + power.

Do you offer any other parts for this projects?

thanks

her shann

 

[hershann]

Without the proper tools, I find a lot of difficulty casing a project / making a chassis. Things like tapping screw threads are a challenge.

Do you think this premade chassis have enough heat sinking power?
http://www.atiresearch-anodized.com/ATI-639M.html

Have also emailed the manufacturer asking for more info.

thanks

her shann

 

[bsuhy]

Peter - I emailed as well...

I'm also in for two PCBs plus 2 PSU boards.

-Thanks

 

[samkhanski]

Hi,

Not quite sure what a 'set' of boards consist of but my intention is to build two F4's. Could I be added to the list?

Thanks,
Sam

 

[Peter Daniel]

The boards will look as in those pics: http://www.diyaudio.com/forums/showthread.php?postid=1230598#post1230598

The amp board has a scoring line and is good for two channels.

The PS board is good for symmetrical supply in stereo setup. If you want dual mono, you will need 2 PS boards.

All boards are gold plated.

The prices include shipping and handling:

Amp board $12
PS board $16

Prices in USD, paypal payment to my e-mail address posted here: http://audiosector.com/contact.asp

All boards will be shipped by airmail, with no tracking and no insurance and I cannot assume responsibility for lost packages. If you need insurance, please add $7 to your order.

I will be ordering PCBs this week. You can pay now or when the boards become available. The lead time is approx 2 weeks.

 

[Yunick]

Payment sent for 2 pcb sets and 2 psu sets.

Thanks alot Peter for doing this..

 

[dpm]

I would like 2 amp boards and 2 PSU boards.

Thanks, paul

 

[jrebman]

Peter,

Just sent paypal for two stereo boards and two PSU boards.

Thanks very much for handling this,

Jim

 

[Daveze]

Payment sent for:
2 x Amp boards
3 x Power Supply boards.

I was hoping for some local support and to do a few amps in parallel but the festive season has left them a little miserly at the moment. I'm covering myself for now and pick up the balance early in the new year.