moomilk
Well-known member
Have some extra stuff from my builds for sale:
Cobalt Amorphous Toroid Cores - great for small signal Transformers and Inductors \ Chokes,
MSF-20A-T 22.5mm 120μ:
*ruler is in cm
Price is 5$\ea
For 5+ qty - feel free to send your offers
Registered trackable airmail shipping worldwide ~7$
Shipping is free if over 50$ total
Paypal is accepted
Manufactureres info:
Cobalt Amorphous Core Toroid MSF-20A-T in hard plastic protective container of glass-polyamide and mechanically fixed with silicone sealant.
MSF series toroidal magnetic cores are made of thin (25 microns) Co-based amorphous ribbon with flat hysteresis loop have high permeability and very low losses.
The container has rounded edges and is designed for direct winding of a thick wire. The container provides reliable mechanical protection and preservation of amorphous material's properties. All materials comply with UL94V-1 / 0.
120μ
Dimensions: 22.5mm-10.4-10.1
High tech modern production, perfect for Audio signal transformers as well as critical applications of Common Mode Chokes
KEY FEATURES OF THE AMORPHOUS MATERIAL:
Induction amplitude, Bm (25°C) 0.59 T
Induction amplitude, Bm (90°C) 0.50 T
Curie temperature, Tc 220°C
Operating temperature range -60°C ... 100°C
Magnetostriction less than 0.1´10^-6
Typical permeability (10 kHz) - 120 000
Typical permeability (100 kHz) - 35 000
ADVANTAGES:
High permeability
Decrease in choke size
Decrease in the amount of winding turns
Low active resistivity
Low core loss
Low wire loss
High impedance in a wide frequency range
Comply with IEC 950, EN 60950, BS 601
Low profile
Full Manufacturers info:
http://en.mstator.ru/products/cores/1a
===============
+ Some high voltage (5kv-10kv) High value metal film resistors (100Mohm \ 220M \ 330M \ 560M \ 680Mohm),
I use these for tube mic builds with great results
Have two types:
1. R1–32-1 (330Mohm and 680Mohm) Thin-metal film high value resistors (10kV max voltage)
Modern production, excellent quality - High–value, high voltage thin–film resistors
All climate version - stable at wide range of atmospheric pressure and humidity - Operating temperature range from – 60ºC to 125ºC
Designed for use in electrical circuits of DC and AC current.
Maximum operating voltage: 10kV DC
5% \ 1W
Great for measurement equipment and for many DIY projects like tube condenser microphone builds etc.
Full Manufacturers info:
http://www.erkon-nn.ru/catalog/11/r1-32/
2. C3-14-1 and C3-14-0,5 100Mohm \ 220Mohm \ 560Mohm - vintage made in USSR (NOS 1988 - OTK 5 - top military grade)
Not to much detailed info is available on these, from what I read and can state for sure is that they are:
"Non-wirewound lacquered composition ceramic base resistors in metal encapsulation."
Not stating "carbon" in the data list I found, so I assume they are either metal film or carbon film, not sure if they could actually be carbon composition at this size \ value \ voltage esp. considering metal casing:
Excellent quality
Designed for use in electrical circuits of DC and AC current.
Maximum operating voltage: 5kV DC for 0,5W \ 10kV for 1W
10% 1W \ 0,5W
Price is 5$\ea
For 5+ qty - feel free to send your offers
Cobalt Amorphous Toroid Cores - great for small signal Transformers and Inductors \ Chokes,
MSF-20A-T 22.5mm 120μ:
*ruler is in cm
Price is 5$\ea
For 5+ qty - feel free to send your offers
Registered trackable airmail shipping worldwide ~7$
Shipping is free if over 50$ total
Paypal is accepted
Manufactureres info:
Cobalt Amorphous Core Toroid MSF-20A-T in hard plastic protective container of glass-polyamide and mechanically fixed with silicone sealant.
MSF series toroidal magnetic cores are made of thin (25 microns) Co-based amorphous ribbon with flat hysteresis loop have high permeability and very low losses.
The container has rounded edges and is designed for direct winding of a thick wire. The container provides reliable mechanical protection and preservation of amorphous material's properties. All materials comply with UL94V-1 / 0.
120μ
Dimensions: 22.5mm-10.4-10.1
High tech modern production, perfect for Audio signal transformers as well as critical applications of Common Mode Chokes
KEY FEATURES OF THE AMORPHOUS MATERIAL:
Induction amplitude, Bm (25°C) 0.59 T
Induction amplitude, Bm (90°C) 0.50 T
Curie temperature, Tc 220°C
Operating temperature range -60°C ... 100°C
Magnetostriction less than 0.1´10^-6
Typical permeability (10 kHz) - 120 000
Typical permeability (100 kHz) - 35 000
ADVANTAGES:
High permeability
Decrease in choke size
Decrease in the amount of winding turns
Low active resistivity
Low core loss
Low wire loss
High impedance in a wide frequency range
Comply with IEC 950, EN 60950, BS 601
Low profile
Full Manufacturers info:
http://en.mstator.ru/products/cores/1a
===============
+ Some high voltage (5kv-10kv) High value metal film resistors (100Mohm \ 220M \ 330M \ 560M \ 680Mohm),
I use these for tube mic builds with great results
Have two types:
1. R1–32-1 (330Mohm and 680Mohm) Thin-metal film high value resistors (10kV max voltage)
Modern production, excellent quality - High–value, high voltage thin–film resistors
All climate version - stable at wide range of atmospheric pressure and humidity - Operating temperature range from – 60ºC to 125ºC
Designed for use in electrical circuits of DC and AC current.
Maximum operating voltage: 10kV DC
5% \ 1W
Great for measurement equipment and for many DIY projects like tube condenser microphone builds etc.
Full Manufacturers info:
http://www.erkon-nn.ru/catalog/11/r1-32/
2. C3-14-1 and C3-14-0,5 100Mohm \ 220Mohm \ 560Mohm - vintage made in USSR (NOS 1988 - OTK 5 - top military grade)
Not to much detailed info is available on these, from what I read and can state for sure is that they are:
"Non-wirewound lacquered composition ceramic base resistors in metal encapsulation."
Not stating "carbon" in the data list I found, so I assume they are either metal film or carbon film, not sure if they could actually be carbon composition at this size \ value \ voltage esp. considering metal casing:
Excellent quality
Designed for use in electrical circuits of DC and AC current.
Maximum operating voltage: 5kV DC for 0,5W \ 10kV for 1W
10% 1W \ 0,5W
Price is 5$\ea
For 5+ qty - feel free to send your offers