Amended list:
SumR (Canada)
(part number: RC0600 915 5; see post #179 and confirmed in post #181)
qusp
pmchoong (Malaysia)
Toroidy (Europe)
samoloko, mravinsky, heinz1, CeeVee, NicMac
Antek (USA)
alazira
to be seen whether there is enough interest
SumR (Canada)
(part number: RC0600 915 5; see post #179 and confirmed in post #181)
qusp
pmchoong (Malaysia)
Toroidy (Europe)
samoloko, mravinsky, heinz1, CeeVee, NicMac
Antek (USA)
alazira
to be seen whether there is enough interest
Amended list:
SumR (Canada)
(part number: RC0600 915 5; see post #179 and confirmed in post #181)
qusp
pmchoong (Malaysia)
Toroidy (Europe)
samoloko, mravinsky, heinz1, CeeVee, NicMac, APK
Antek (USA)
alazira
to be seen whether there is enough interest
SumR (Canada)
(part number: RC0600 915 5; see post #179 and confirmed in post #181)
qusp
pmchoong (Malaysia)
Toroidy (Europe)
samoloko, mravinsky, heinz1, CeeVee, NicMac, APK
Antek (USA)
alazira
to be seen whether there is enough interest
PRP 9372 Audio Resistors
So I have a small piece of good news for you.
If you have seen my original F5X boards, you would know that I used PRP9372 resistors (1/4W and 1W) for the main amplifier (except for the current limiting circuit), and also for the regulator RC filter.
For those who have read Ed Simon's article in Linear Audio Volume 1 on resistor non-linearity tests, you will know that PRP has one of the best performance amongst those tested, at very affordable costs.
Fitzfish is currently ordering them (sets) for the test team. Instead of the usual 100ppm/K types that is commercially available, e.g.
PRP Quarter Watt Resistors
he can get 50ppm/K ones.
Again read Ed Simon's article and you will know why tempco is important for low non-linearity.
I have talked fitzfish into also make them available to all, provided that he only needs to deal with one person. i.e. if you could organise yourself, collect money, send him one order, then match and distribute yourselves, ...., etc. you can have the same resistors at factory costs. Bear in mind that factory order for large quantities has a delivery time of 6 weeks minimum.
Now all in your own hands. 🙂
Patrick
So I have a small piece of good news for you.
If you have seen my original F5X boards, you would know that I used PRP9372 resistors (1/4W and 1W) for the main amplifier (except for the current limiting circuit), and also for the regulator RC filter.
For those who have read Ed Simon's article in Linear Audio Volume 1 on resistor non-linearity tests, you will know that PRP has one of the best performance amongst those tested, at very affordable costs.
Fitzfish is currently ordering them (sets) for the test team. Instead of the usual 100ppm/K types that is commercially available, e.g.
PRP Quarter Watt Resistors
he can get 50ppm/K ones.
Again read Ed Simon's article and you will know why tempco is important for low non-linearity.
I have talked fitzfish into also make them available to all, provided that he only needs to deal with one person. i.e. if you could organise yourself, collect money, send him one order, then match and distribute yourselves, ...., etc. you can have the same resistors at factory costs. Bear in mind that factory order for large quantities has a delivery time of 6 weeks minimum.
Now all in your own hands. 🙂
Patrick
Sounds like a good idea to me🙂
As I would be interested in a couple of sets of these resistors I can volunteer to collect money, send one order to fitzfish and distribute to GB participants. To keep things simple I think it would be a good idea to decide a deadline (I guess fitzfish would like to proceed on this soon as delivery times are long) and define what a "set" covers as well as a rough estimate of price/set.
Input appreciated!
Cheers,
Nic
-----------------------------------
Tentative participant list:
NicMac 2 sets
As I would be interested in a couple of sets of these resistors I can volunteer to collect money, send one order to fitzfish and distribute to GB participants. To keep things simple I think it would be a good idea to decide a deadline (I guess fitzfish would like to proceed on this soon as delivery times are long) and define what a "set" covers as well as a rough estimate of price/set.
Input appreciated!
Cheers,
Nic
-----------------------------------
Tentative participant list:
NicMac 2 sets
Tentative participant list:
NicMac 2 sets
pmchoong 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
NicMac 2 sets
pmchoong 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
Please kindly redo list under 3 continents for ease of distribution later.
Patrick
Tentative participant list for PRP resistors:
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
Asia
pmchoong 2 sets
USA
....
Patrick
Tentative participant list for PRP resistors:
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
Asia
pmchoong 2 sets
USA
....
> To keep things simple I think it would be a good idea to decide a deadline (I guess fitzfish would like to proceed on this soon as delivery times are long) and define what a "set" covers as well as a rough estimate of price/set.
Please get in touch with fitzfish directly.
Patrick
Please get in touch with fitzfish directly.
Patrick
Tentative participant list for PRP resistors:
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
Asia
pmchoong 2 sets
USA
alazira 1 set
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
Asia
pmchoong 2 sets
USA
alazira 1 set
Thanks very much, NicMac, for your volunteering!
Tentative participant list for PRP resistors:
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
heinz1 2 sets
Asia
pmchoong 2 sets
USA
alazira 1 set
Tentative participant list for PRP resistors:
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
heinz1 2 sets
Asia
pmchoong 2 sets
USA
alazira 1 set
Tentative participant list for PRP resistors:
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
heinz1 2 sets
JBdV 2 sets
Asia
pmchoong 2 sets
USA
alazira 1 set
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
heinz1 2 sets
JBdV 2 sets
Asia
pmchoong 2 sets
USA
alazira 1 set
Tentative participant list for PRP resistors:
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
heinz1 2 sets
JBdV 2 sets
Asia
pmchoong 2 sets
USA
alazira 1 set
pchw 1 set
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
heinz1 2 sets
JBdV 2 sets
Asia
pmchoong 2 sets
USA
alazira 1 set
pchw 1 set
Tentative participant list for PRP resistors:
Note: 1 set = 1 complete F5X build (dual mono amps + PS)
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
heinz1 2 sets
JBdV 2 sets
Asia
pmchoong 2 sets
USA
alazira 1 set
pchw 1 set
horio 2 sets
Note: 1 set = 1 complete F5X build (dual mono amps + PS)
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
heinz1 2 sets
JBdV 2 sets
Asia
pmchoong 2 sets
USA
alazira 1 set
pchw 1 set
horio 2 sets
Tentative participant list for PRP resistors:
Note: 1 set = 1 complete F5X build (dual mono amps + PS)
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
heinz1 2 sets
JBdV 2 sets
Asia
pmchoong 2 sets
Nikon1975 2 sets
USA
alazira 1 set
pchw 1 set
horio 2 sets
Horio, how come you don't want to match these one as well ? Just joking. Fukushima resistors on their way 🙂
D.
Note: 1 set = 1 complete F5X build (dual mono amps + PS)
Europe
NicMac 2 sets
Mravinsky 2 sets
APK 2 sets
Chalkandtalk 1 set
heinz1 2 sets
JBdV 2 sets
Asia
pmchoong 2 sets
Nikon1975 2 sets
USA
alazira 1 set
pchw 1 set
horio 2 sets
Horio, how come you don't want to match these one as well ? Just joking. Fukushima resistors on their way 🙂
D.
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