Koenig Acoustical

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Open tube with different openings at end
A wooden organ pipe, open at one end (452.1). At the other end there is a beveled attachment into which a second flat piece of wood with rounded ends (452.2) can be slid. This sliding piece of wood has four round holes of increasing size cut through it. Each of [Read More...]
Set of 8 Large Demonstration Tuning Forks
Two sets of large tuning forks on separate black-coloured stands. Each stand has four slots in which the forks can be secured using a large nut at the base of the fork. The appropriate fork is painted in white beside each slot. This indicates the pitch of the fork meant [Read More...]
Mercury-Based Interrupter
This is a metal instrument fixed on a rectangular wooden base with three wooden feet and one metallic bolt foot for adjustment. The instrument consists of a metal bar supported by a central component and interacting with two others at each end of its length. On top of the bar, [Read More...]
Organ Pipes with Manometric Flames
Five rectangular open organ pipes, four of which have fittings midway along the side for flame mechanism (the fifth’s fitting is missing). Each pipe, except 716.1, has a wooden attachment near the manometric fitting which consists of a wooden bar holding a wooden tube that extends beyond the width of [Read More...]
Rotating mirror for manometric flame visualization
This is a four-sided box-shaped mirror mounted on a heavy iron frame and supported on a stand. The mirror can be rotated by a crank handle that connects to the mirror via a pair of gears. There is some brown paper apparently stuck to one face of the mirror.
Organ pipe adjustably stopped at both ends
Wooden organ pipe attached to a black painted wooden stand which frames the pipe. The pipe is stopped at both ends by stops inserted into the ends of the pipe; the pipe can be slid back and forth along the stops. The sides of the pipe include eleven wooden rotating [Read More...]
Stand for Manometric Apparatus
This object consists of a metal stand with a tripod base. A metal pole rises straight up. Attached to the stand pole by a screw clamp is an arm that supports a small piece of wood. The piece of wood has three small hollow brass tubes running through it perpendicularly, [Read More...]
Rectangular pipes with walls of varying thickness
This is two of a set of three open pipes with walls of varying thickness. 2016.ph.730.1 has thicker walls. 2016.ph.730.2 has thinner walls. Each pipe has a round foot at the base.
Pipes with mouthpieces of different widths
Two of a set of three rectangular organ pipes of the same size and shape, but with different width mouthpiece and lip. 2016.ph.728.1 has a wider lip, 2016.ph.728.2 has a narrower lip. Both pipes have a round foot at the base.
Rectangular open pipes, one with cloth inside
Two of a set of two rectangular organ pipes of the same size and shape. 2016.ph.729.2 is lined on the inside with dense beige cloth. Both pipes have a round foot at the base.
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