Holidays.net Online Store

Holdays.net Home


October 23rd, 2014
Diwali/Deepavali

October 24th, 2014
United Nations Day

October 24th, 2014
World Development Information Day

October 25th, 2014
Muharram/Islamic New Year

October 27th, 2014
World Day for Audiovisual Heritage

October 29th, 2014
World Stroke Day

October 31st, 2014
Nevada Day

October 31st, 2014
Halloween

November 1st, 2014
All Saints' Day

November 1st, 2014
All Saints

November 2nd, 2014
All Souls' Day

November 2nd, 2014
Daylight Saving Time ends

November 4th, 2014
Election Day

November 6th, 2014
World Day to Protect the Environment in War

November 6th, 2014
Return Day Delaware

November 10th, 2014
World Science Day

November 11th, 2014
Veterans Day

November 14th, 2014
World Diabetes Day

November 16th, 2014
World Day for Road Traffic Victims

November 16th, 2014
International Day for Tolerance

November 19th, 2014
International Men's Day

November 20th, 2014
World Philosophy Day

November 20th, 2014
Universal Children's Day

November 20th, 2014
Africa Industrialization Day

November 21st, 2014
World Television Day

 



Search:

2 Working Karas Harmonik Audio Frequency Amplifying Interstage Transformers For Sale

2 Working Karas Harmonik Audio Frequency Amplifying Interstage Transformers

For sale is a pair of working Karas Harmonik All Stage Ratio audio frequency transformers. They were designed and manufactured by Karas Electric Co., 4043 N. Rockwell St., Chicago. These cost $5.75 each in 1925's dollars at one dealer in Chicago.Both transformers have good windings and are in good cosmetic condition. They are tested with an HP sinewave generator and a Fluke scopemeter. The black paint on both is original. One transformer has a missing thumb nut. The primary to secondary ratio was not specified but it is measured to be 1 to 4.Measurements for Transformer 1
Primary DC Resistance: 1.534 kohms
Secondary DC Resistance: 8.92 kohms
Amplification Factor: 4 at 1 kHzMeasurements for Transformer 2
Primary DC Resistance: 1.316 kohms
Secondary DC Resistance: 7.90 kohms
Amplification Factor: 4.06 at 1 kHzInternational buyers are welcome. Payment is requested within two days of purchase.

2 Working Karas Harmonik Audio Frequency Amplifying Interstage Transformers

This item has been shown 0 times.

Buy Now

2 Working Karas Harmonik Audio Frequency Amplifying Interstage Transformers:
$75




Vtg Rca Radiola 28 Radio Super Heterodyne Battery Powered Receiver Cabinet Wood picture
Vtg Rca Radiola 28 Radio Super Heterodyne Battery Powered Receiver Cabinet Wood


1923 Stewart-warner Model #5 Battery Radio - Very Nice Unit  picture
1923 Stewart-warner Model #5 Battery Radio - Very Nice Unit


Atwater Kent Machine Gun Clinometer From 1917 Ww1 Excellent Shape Bubble Good picture
Atwater Kent Machine Gun Clinometer From 1917 Ww1 Excellent Shape Bubble Good


Antique Vintage 1929 Stewart Warner Tube Radio Brochure Pamphlet Ad  picture
Antique Vintage 1929 Stewart Warner Tube Radio Brochure Pamphlet Ad


Antique Vintage 1927 American Bosch 116 Tube Radio Brochure Pamphlet Ad  picture
Antique Vintage 1927 American Bosch 116 Tube Radio Brochure Pamphlet Ad


Model 48  Atwater Kent Receiving Set (1928) picture
Model 48 Atwater Kent Receiving Set (1928)


1926 Radio Amrad 5-tube Neutrodyne S-522  picture
1926 Radio Amrad 5-tube Neutrodyne S-522


Atwater Kent Radio Receiving Set Model 35 With Type E Radio Speaker 1926 Era picture
Atwater Kent Radio Receiving Set Model 35 With Type E Radio Speaker 1926 Era


Grebe Synchrophase Mu-1 Radio Receiver Vintage Collectible Audio  picture
Grebe Synchrophase Mu-1 Radio Receiver Vintage Collectible Audio


Vintage Radio - Freed-eisemann Neutrodyne Reciever Model Nr-5 & Horn Speaker  picture
Vintage Radio - Freed-eisemann Neutrodyne Reciever Model Nr-5 & Horn Speaker