Category:Mid High Fidelity (most Japanese recorders fall into this category)
Country of Manufacture:
Release dates:1961 - 1964
Speeds: 7 1/2, 3 3/4, 1 7/8
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: half-track mono
# Motors: 1
Frequency Response:(all 3 dB): 7½ ips: 50Hz -18kHz
Wow and Flutter:2% at 7½ ips. 2.5% at 3¾ ips and 3.5% at 1 ips
Signal-to-Noise Ratio:>54 dB (7½ ips), >50 dB (3¾ ips), >45 dB (1 ips)
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
from the collection
of Flemming Sorensen:
This is one of the most common tape recorders on the Danish second-hand
market. It is found in almost every flea-market or garage sale.
The Danish ELTRA company started making this model in 1961 and ended up
production in 1969. 62,000 were manufactured so it’s little wonder
they are so common.
The mechanics were imported from the UK- a BSR TD 10 deck. (which was
a larger version of the deck used by B&O for their BELCANTO recorder).
BSR TD 10 three speed tape transport uses a specially modified version of the TD10 deck, with extra features.
Good quality tube electronics, including tape speed equalization and an ECLL800 push-pull audio output stage driving a decent loudspeaker. Very well built with hand wired electronics. The modified BSR TD 10 deck features magnetic shielding around the motor, with a three position control to the right of the usual tape joystick transport control with motor off, spool brakes release and pause functions.
The electronics feature a separate bias oscillator, which allows monitoring while recording – but not off-tape as there are only two heads: record/play and erase
Tube complement: 2 x ECC 808. ECF 802. ECC 85. ECL800. EM87 / Audio output power: 6 watts / Inputs: mic: 0.25 mV / 1 Mohm. radio: 5 mV / 100K ohm / Outputs: line. speaker (3.2 ohms) / Dimensions: 7¾ x 11¾ x 16″ (200 x 300 x 410 mm) / half-track mono