LCR RIAA passive

(General) Forum about other items than listed below

LCR RIAA passive

Postby gipione » Fri Feb 03, 2017 2:34 pm

good day
I am interesting at transformers for "PASSIVE RIAA Applications":
LL4611-1.8H-MP2; LL4611-180mH-MP2
are in store, and cost ?
for other type of passive riaa i am interesting at pair of inductor 31,8 H and
7,8H ( AUDIO NOTE M-10) have already this?

thank you.
Favaro Giampietro

Treviso-Italy
gipione
 
Posts: 3
Joined: Fri Feb 03, 2017 9:28 am

Re: LCR RIAA passive

Postby Admin19 » Mon Feb 06, 2017 6:28 pm

Dear Favaro,

I am sorry, these are not made any more.

Jac
User avatar
Admin19
Site Admin
 
Posts: 65
Joined: Sun Dec 11, 2011 1:55 pm

Help me for inductor passive RIAA

Postby gipione » Tue Feb 14, 2017 2:10 pm

Help me for inductor passive RIAA
On page for passive riaa I have found this type correct of inductor but don’t find it in price o where is possibble know the cost and order there???

Transformers for PASSIVE RIAA Applications
LL4611-1.8H-MP2
1+1 38 x 23 x 22 Matched Pair LL4611. Matched better than 2%.
1.8H in series. 0.45H in parallel
LL4611-180mH-MP2
1+1 38 x 23 x 22 Matched Pair LL4611. Matched better than 2%.
180H in series. 450mH in paralle

Thank very much all you for info.
g.pietro
gipione
 
Posts: 3
Joined: Fri Feb 03, 2017 9:28 am

Re: LCR RIAA passive

Postby gipione » Wed Feb 15, 2017 7:37 am

Tibeliusgatan 7
International
Domestic
Phone
+46 - 176 13930
0176-13930
Fax
+46 - 176 13935
0176-13935
LUNDAHL
TRANSFORMERS
S-761 50 NORRTÄLJE
SWEDEN
RIAA inductor LL4611
The LL4611 inductor consists of two coils and a special mu metal C-core. The coils are wound using our standard low
capacitance coil winding technique using
paper insulation between each layer of
copper wire. The dual coil structure
greatly reduces the risk of picking up hum caused by external magnetic fields from e.g. mains transformers.
The inductor is cased in a mu metal hous
ing for additional magnetic insulation.
Winding schematics and pin layout (viewed from pins’ side!)
1
2
3
4
5
7
8
LL4611
Pin side view
7
4
2
5
Dimensions (mm)
(Length x Width x Height above PCB/ excluding pins)
38 x 23 x 22
Weight
75 g
Spacing between pins
5.08 mm (0.2")
Spacing between rows of pins
27.94 mm (1.1")
Recommended minimum PCB hole dimensions
1.5mm
Static resistance of each winding
14
Ω
Type Inductance,
windings in
series
Copper
resistance,
windings in
series
Inductance,
windings in
parallel
Copper
resistance,
windings in
parallel
Inductance
tolerance
from nominal
value
LL4611 / 1.8H
1.8 H
25
Ω
0.45 H
6.2
Ω
+/- 8%
LL4611 / 0.18H
0.18 H
25
Ω
45 mH
6.2
Ω
+/- 7%
LL4611/1.8H matched
pair tolerance
4% or less
LL4611/0.18H
matched pair tolerance
3% or

this page is n http://www.jacmusic.com/

why??
thank
best regards
gp
gipione
 
Posts: 3
Joined: Fri Feb 03, 2017 9:28 am

Re: LCR RIAA passive

Postby wrm0325 » Thu Apr 13, 2017 1:55 am

Hello GP,
I don't want to post info for a Lundahl competitor here, so shoot me a PM to my email: wrm0325@sbcglobal.com

It appears what you are looking for is not available anymore, and I have a place where you can get exactly what you want.

Cheers, Crazy Bill
wrm0325
 
Posts: 4
Joined: Wed Apr 12, 2017 10:40 pm


Return to HiFi Equipment Forum

Who is online

Users browsing this forum: No registered users and 1 guest

cron