R/P heads for "2-head" cassette decks measured



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Head/Deck Material Channel L (10 kHz) mH Q (10 kHz) R, Ohm
1 Aiwa AD-F370 Amorphous L 106 7.5 315
CM09 8F08C R 105 7.5 310
2 Aiwa AD-F700 Amorphous L 103 11 201
(3320 I93S) R 102 9.7 199
3 BT62 (China) Permalloy L 91 2.2 243
R 87 2.3 247
4 Denon DR-M12 Permalloy L 33 3.1 104
K73S R 31 3.1 100
5 Denon DRM-600 Amorphous L 38 8 110
R 36 7 107
6 Konig Electronic 2016.00 Permalloy L 80 3.1 232
R 79 3.3 230
7 MS 15RAA2 K9Z20 Permalloy L 105 2.3 215
R 95 2.2 220
8 Nakamichi 500 Crystalloy L 116 3.6 316
R 106 3.6 312
9 Nakamichi S4720 Sendust L 121 2.8 254
R 120 2.9 245
10 Nakamichi BX-125 Sendust L 106 2.4 261
S5X10 R 104 2.3 263
11 Nakamichi RX-202 Sendust L 102 2.2 265
S3Y10 R 103 2.5 255
12 Onkyo TA-2050 Permalloy L 101 2.5 332
A0410 R 105 2.3 325
13 Sony PP181-3602D Permalloy L 82 2.2 187
R 80 2.1 190
14 Sony TC-229SD F&F Ferrite L 174 24.5 193
PF145-3602A R 171 26 195
15 Sony TC-D5PRO F&F Ferrite L 142 28 201
PF180-3602 R 151 32 204
16 S-231 S7A30 Permalloy L 96 2.4 245
R 93 2.6 240
17 Teac 55696160 Sendust L 122 3 213
 (WY1416ZT) R 125 2.8 211
18 Technics 3117A HP Ferrite L 148 18 167
R 120 20 163
19 Technics RSM265X Amorphous L 94 7.2 237
AX QWY4137Z R 100 7.4 239
20 Technics RS-B55 Amorphous L 90 7 239
AX QWY4161G R 92 7.6 225
21 Technics RS-B555 Permalloy L 67 1.6 294
H4C35 GZA 9I19C R 67 1.5 294
22 Technics RS-M02 "SX" Sendust L 116 2.9 209
(WY1416ZA) R 113 3.1 209
23 Toshiba PC-E70 Permalloy L 103 2.7 316
HRPT-77 "SuperAP" R 98 2.7 311
24 Toshiba PC-X10 Permalloy L 91 2.9 259
BG62 R 82 3 265
25 Yamaha GF-36 Sendust L 27.9 2.2 124
R 28.6 2.2 121
26 Yamaha KX-300 Amorphous L 39.3 9.3 105
GF-40 R 37.6 9.3 107
27 02 I 421-0 Permalloy L 101 2.7 301
R 94 2.9 304
28 245-30 N9Y20 Permalloy L 104 2.6 205
R 101 2.6 207
29 5874-2320 F568 Sendust L 124 2.6 182
R 116 2.7 179
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