AB-460 Tuning fork a1 = 440 Hz

with resonance case and striking hammer, extra long sound for various investigations.
(fully packed in polystyrene)

AB-458

Pair of tuning forks (big modell) a1 = 440 Hz, with resonance cases, sliding weights, and striking hammer. For resonance, dissonance, beat and other investigations.
(in polystyrene full packaging)

AB-457

(like AB-458, however small model, without polystyrene full packaging)

AB-451

Tuning fork set consisting of one each of the following tuning forks: c1 256 Hz /
e1 320 Hz / g1 384 Hz and c2 512 Hz (major cord) with resonance cases and striking hammer.
Adaptable for various investigations.
(fully packed in polystyrene)

AB-435 and AB-435 a

Tuning forks c 128 or 100 Hz,
with stylus for tracing vibrations such as on the included glass plate.
(fully packed in polystyrene)

AB-441

Tuning fork 2000 Hz, with striking hammer.
For demonstrating the Doppler-Effect.

AB-445 Aluminium tuning fork 1700 Hz
AB-446 Aluminium tuning fork 1000 Hz

with extra wide resonance reflecting surfaces to demonstrate the long of waves, etc.
AB-448 Pair of aluminium tuning forks similar to AB-445. The two tuning forks are accurately adjusted to be sympathetic.

Touching hammer

AB-055 Touching Hammer for Tuning Forks of tones c3 1024 Hz / c4 2048 Hz / c5 4096 Hz
AB-056 Touching Hammer for Tuning Forks of tones c 128 to c5 4096 Hz,
with two different touching-surfaces.
AB-057 Touching Hammer for Tuning Forks of tones c 128 Hz to c3 1024 Hz

AB-490
Tuning fork set of tones c1 261,6 HZ - c2 523,2 HZ (im Etui)
Also other compositions are available!