Wanted to trade f4 boards for f5

[slr 5000]

hi
i have a pair of poulated f4 boards using prp resistors ,nichicon caps ,matched semis from tech diy ready to use just missing 1 x diode


i,m after a trade on some built f5 boards hopefully using good parts as per my boards above
i also have a set of edcor auto formers to convert the f4 to m2

cheers Sheafer

 

[slr 5000]

pics

 

[buzzforb]

Keep it and run BA3 FE into it. You will not wish for the F5 anymore.

 

[slr 5000]

hi Buzz
instead of the auto formers?

 

[buzzforb]

Yup. You can even drop the FE jfets and use them in the BA3 FE. The output stage of the Ba is basically same as F4 without FE. PM me if you want details.

 

[d to the g]

I'm going to politely disagree with buzz.. I prefer the transformer gain to the ba3.

It's all about the seasoning!

 

[buzzforb]

Didnt say it left M2 behind, I said it left F5 behind, IMO.

 

[slr 5000]

Heres my dillema guys
i already have a f6 kit on the way so will already have some of that sweet transformer flavour in my house

so i guess i,m looking for somethoing different to add to my stable

i also have a complete set of running aleph 2 boards to trade as well if some one is interested they are built with nichicon caps matched semis and dale resistors

i could be partial to a trade on some pre amp boards as well

cheers Sheafer

 

[slr 5000]

heres the aleph 2 boards (1 channel the other channel is the same)
the output devices are under the boards which mount against the heatsinks
it runs and sounds perfect

 

[slr 5000]

hi all
one set of f4 gone to mauritz and one set left
aleph 2 is stil up for trade
let me know what you have

a diy tube pre or maybe some semisouth outputs perhaps?

cheers Sheafer

 

[3GGG]

How about a populated pumpkin pre for the F4's?

 

[slr 5000]

gday all
still have the aleph 2 boards
complete and working ,all good parts used with tec diy matched semis
i will bundle them with 2 x nuvotem potted 500va25/25 trannys
for $300au the lot
these are very good trannys all you will need to have a working aleph 2 is power supplys
they are high bias so you will need conrad 151/350 sinks in mono blocks minimum but the sound is magnificent
the above is setup to run harder speaker loads hence the lower supply voltage/higher bias
i can supply the sinks for extra cost shipping to au only as the trannys are very large and heavy
still will consider swaps
forgot to add sorry 3g the f4,s are gone
sheafer

 

[buzzforb]

I have some leftover F5T boards from GB. They are TeaBag version.

 

[slr 5000]

hi Buzz
i have a set of f5 boards on there way to me as trade on one of my f4 sets so i,m ok for now i still have one f4 pair which i will mess around with at a later stage
i also have a feeling i will be putting together an f6 in the next week or so😀
so i may have my hand full

cheers Sheafer

 

[buzzforb]

 

[Eric]

Yup. You can even drop the FE jfets and use them in the BA3 FE. The output stage of the Ba is basically same as F4 without FE. PM me if you want details.

Bob, can you please PM me with these details? This is going to be my next build - driven by a hotrod DCB1 in (undertermined) full-range drivers.

 

[buzzforb]

Bob?

 

[Eric]

Bob?

My apologies for a case of mistaken ID 😱

Buzz, I would still appreciate some details on this. I am about to build a BA3 (no feedback) to go with an F4. If there is a way to graft them together and bypass the front end on the F4 boards, I would be very appreciative!

Thanks,
Eric

 

[buzzforb]

😀
Let me test a couple of options and Ill let you know. You can bypass the input on the F4 the BA FE without doing anything else other than connecting it in proper place. I am after dropping any coupling caps, through a balanced variation.

 

[slr 5000]

hi all
still have these aleph 2 boards
all the semis were matched and all passives are high quality

$200 au plus shipping